Currency (Royal Australian Mint) Determination 2004 (No. 7)

The central concept is the “specification of coins” under section 13A of the Currency Act 1965, by which the Minister (or delegate) can prescribe the physical and design characteristics of any coin to be issued by the Royal Australian Mint. The determination is the legal instrument that makes those specifications binding. Each item in Schedule 1 is a complete specification covering all relevant attributes: denomination, composition (expressed as a minimum purity percentage, not an alloy ratio), weight with tolerances, dimensions (maximum diameter and thickness), shape (circular or dodecagonal), edge description (milled, plain, or segmented), and detailed obverse and reverse designs. The determination does not set a face-value metal content equivalence; that is handled by the Currency Act itself, under which these coins are legal tender for their face denominations subject to any limits on payment in coin.

Two notable design features are the segmented edges on the $1 coins (14 segments, 7 milled and 7 plain) and $2 coins (8 segments, 4 milled and 4 plain). This is an anti-counterfeiting measure used on some collector coins, but it is not specified for any circulating Australian coin of that era. The $5 coins have continuously milled edges. The thickness and diameter maxima are strict; the Mint must ensure the finished coin does not exceed these. Weight tolerances are symmetric around the standard weight, but the determination does not specify whether the tolerance applies to each individual coin or to batch averages; by default it applies to each coin. For the 50c coins, which are dodecagonal, the diameter is defined as the width between parallel faces, consistent with the actual shape.

Another concept is the “non-affectation” clause in section 4: the specifications in Schedule 1 do not affect any other determination. That means multiple determinations for the same face value can coexist. For example, the standard circulating 5c coin is specified in a separate determination (likely in base metal, with different weight and design); this determination creates an additional 5c coin in silver and in gold, but it does not override or amend the circulating coin specs. The Mint can thus issue several different 5c coins under separate determinations, all legal tender but with vastly different metal values and intended uses. This raises interesting questions about whether two coins of the same denomination but different specifications can be considered interchangeable for legal tender purposes, though in practice the collector coins will never circulate.

The primary entity affected is the Royal Australian Mint, which must conform its manufacturing processes, die-making, and quality control to the exact parameters set out. Each specification imposes compliance costs on the Mint: precise metal assay to ensure purity not less than the stated standard, precise weight control within the allowable variation, die engraving that matches the described designs, and edge tools that produce the correct milling pattern or plain face. The segmented-edge coins require more complex tooling than plain or continuously milled edges. The Mint also bears the risk of producing non-compliant coins, which could be rejected or have to be melted down, though no penalties are prescribed in this determination.

Collectors and bullion investors are also affected, though indirectly. The determination defines the exact characteristics of the coins they purchase, giving them assurance that the Mint’s product matches a published standard. Dealers in precious metal coins rely on these specifications to authenticate and grade coins. If the Mint were to vary from the determination (e.g., accidentally strike a coin with a weight outside tolerance), the coin might be considered non-standard and could affect its marketability, even if it remains legal tender. The determination also provides a basis for detecting counterfeits, because any coin that does not match the Schedule 1 parameters is not an authorised coin under this determination.

Businesses that accept cash are unlikely to encounter these coins in daily transactions because their metal value far exceeds face value; a gold 5c coin contains about six grams of 99.99% gold, worth hundreds of dollars. However, if such a coin were proffered as payment for a five-cent item, the business would be legally obliged to accept it (subject to the legal-tender limits for silver and gold coins under the Currency Act, which are not specified here). In practice, no rational person would use it as five-cent coinage, so the effect on commerce is negligible.

Taxpayers and the Australian Government are affected through the Mint’s operations: the Mint sells these coins at a premium over face value, earning seigniorage. The determination thus indirectly affects government revenue. No private mint is permitted to produce coins that replicate these specifications, as coinage is a Crown monopoly under the Currency Act. This puts the Mint in a privileged position to capture the numismatic market, though private mints can produce similar-looking medals or rounds if they do not claim to be legal tender.

The determination imposes a duty on the Royal Australian Mint to ensure that each coin struck under this determination conforms to the specifications in Schedule 1. There is no express duty on any other person. The Mint’s duty arises from the fact that the determination is a legislative instrument made under a power in the Currency Act; the Mint, as a Commonwealth entity, is bound by its terms. If the Mint issues a coin that does not meet the required composition, weight, dimensions, or design, that coin would not be a coin authorised by this determination (though it might still be authorised under another determination if it matches those specs). The practical consequence is that the Mint would have to withdraw or remelt non-compliant coins.

Holders of these coins have the right to use them as legal tender for their face value, subject to any limitations in the Currency Act (e.g., for silver coins, payment is legal tender only up to $5 for 50c pieces? That is not in this determination, so we cannot specify). The determination does not create any right to demand that the Mint produce a particular coin; it merely authorises production. Collectors have no right to refund if the coin’s metal value drops, nor any guarantee that the design will be continued.

The discretion to issue the coins lies with the Mint. The determination itself does not impose any ongoing duty to produce these coins; it is permissive. The Mint could decide never to strike these coins, and no private party could compel it to do so. The right to make further determinations of coin specifications is preserved by section 13A of the Currency Act.

This determination contains no penalty provisions. Enforcement arises only through the broader Criminal Code and the Currency Act. Producing coins that do not meet these specifications but purporting to be authorised coins could amount to counterfeiting or fraud, but the determination itself does not create an offence. If the Mint inadvertently produces non-compliant coins, the remedy is administrative: the coins are simply not authorised under this determination and cannot be issued. They might still be melted or re-struck. No criminal penalty falls on Mint employees for an error in weight or design because there is no mens rea element specified.

For private individuals, if a coin is sold as being an “Item 1 five cent coin”, for example, and it does not match the specifications (e.g., wrong metal), the seller could be liable for misrepresentation or fraud under Australian Consumer Law, but the determination is not the enforcement mechanism. The determination functions as a standard against which authenticity can be measured.

Counterfeiting is an offence under the Currency Act, which generally prohibits making or possessing instruments for making counterfeit coins, and passing counterfeit coin as genuine. The specifications in this determination would be used to prove that a suspect coin is not an authorised piece, but the determination itself is not enforced separately. There are no inspectors, fines, or compliance orders attached to this instrument.

The determination is made under subsection 13A(1) of the Currency Act 1965, which gives the power to specify coin characteristics. That Act is the primary law governing what constitutes a coin as legal tender in Australia. The determination does not alter the effect of sections 16 and 16A of the Currency Act, which limit the amount of silver, nickel-brass, and bronze coins that are legal tender in a single transaction. Those limits are not reproduced here, and the determination does not override them. So a payment of 100 gold five-cent coins would not be legal tender for $5 because gold coins are not subject to the same limit? Actually, gold coins have no payment limit under the Currency Act. But again, not in this source.

The determination interacts with other determinations by operation of section 4: it does not affect them. That means the standard circulating coin specifications remain fully in force. For instance, the normal 5c coin (cupro-nickel, 2.83g, etc.) is still valid. Thus there are now multiple valid 5c coins with different compositions and weights. This could create analytical complexity for automated coin counting or vending machines, though those machines are designed for circulating coin specs and would reject the precious-metal 5c coins anyway due to weight and metal differences.

The determination is a legislative instrument and would need to be registered under the Legislation Act 2003. It is subject to disallowance by either House of Parliament within 15 sitting days after tabling, though no such disallowance occurred. If the determination were repealed or amended, the affected coins would no longer be authorised for future production, but coins already issued would remain legal tender (because they were lawfully issued under the then-current determination).

Tax laws are not directly affected, but the determination provides evidence for classification of these coins as “investment gold” or “collectible” for GST purposes. The 99.99% gold coins may qualify for GST-free treatment under the A New Tax System (Goods and Services Tax) Act 1999 if they meet purity and weight thresholds. The determination’s purity specifications (not less than 99.99%) would be used to demonstrate that. Similarly, capital gains tax treatment may vary for collector coins as opposed to pure bullion.

The source text supplied is the original determination made on 30 July 2004 and notified in the Gazette. The determination itself does not record any amendments. As a legislative instrument, any subsequent amendments would have been made by a later determination under the same provision. There is no indication in the provided text that any amendments were ever made. The determination appears to be a standalone instrument for a single issuance of commemorative and bullion coins for the year 2004/2005. Industry practice is that such determinations are often made annually or for specific releases; they may be superseded by later determinations but remain in force until repealed. Without access to the Federal Register of Legislation, we cannot confirm amendment history beyond the text provided. The instrument is small and contains no amendment clause or list of amendments.

The determination itself, as a technical administrative instrument, has not been the subject of any reported litigation. No court has been asked to interpret its terms, challenge its validity, or apply its specifications to a dispute. The instrument is unlikely to generate litigation because it imposes no duties on private parties beyond the Mint. Any dispute that might use the determination would probably be about authenticity of a coin in a criminal prosecution for counterfeiting, but that would not be a direct challenge to the determination. The absence of litigation does not mean the determination is unimportant; rather, it reflects that the specifications are detailed enough to be self-executing. The only potential legal issue might arise if the Mint were to issue a coin that departed from these specs and a purchaser sued for misrepresentation, but no such case is publicly known.

Several features of this determination could trip up the unwary practitioner or collector. First, the denominations are face values, but the metal content is enormously more valuable: a 5c gold coin containing 6.13g of 99.99% gold has a melt value several hundred times its face value. Attempting to use such a coin as five-cent legal tender would be economically irrational, but legally it is valid. A business unfamiliar with these coins might mistakenly refuse it, potentially breaching legal tender rules. Conversely, a bank teller might reject it as unfamiliar, though it is lawful.

Second, the use of the inscription “SD” on the reverse of the 5c and 10c coins. This abbreviation is not defined in the determination. In numismatic practice, “SD” likely stands for “Striking Device” or “Specimen Design”, but it remains an open question whether this is required for the coin’s legality. If the Mint omitted “SD”, the coin would not comply with the design specification and might not be an authorised coin.

Third, the weight tolerances are absolute: a 5c gold coin must weigh between 6.03g and 6.23g. Coins at the very edge of the tolerance are still compliant, but a coin weighing 6.02g would be unlawful under this determination. The Mint cannot rely on average weight or batch tolerance; each coin must be within range.

Fourth, the composition thresholds are minimums only: “not less than 99.9% silver”. This allows the Mint to use higher purity (e.g., 99.95%) and still comply. But if the reverse is true (purity slightly below), the coin is non-compliant. This asymmetry means the Mint must ensure purity never drops below the floor.

Fifth, the maximum diameter and thickness are maxima, not targets. A coin slightly thinner than the specified maximum thickness is acceptable, but a coin that is 0.01mm thicker is not. This could cause issues if the Mint’s process drifts.

Sixth, the shape of the 50c coins is dodecagonal, and the diameter is defined as the distance between parallel faces. A coin that is slightly out-of-round may have a larger measurement from vertex to vertex, but that is not the specified dimension. Only the face-to-face distance matters.

Seventh, the obverse design includes the monogram “IRB” (Ian Rank-Broadley). If the Mint ever changed the die to remove or replace the monogram, the coin would not match the specification and would not be authorised under this determination. Any future re-strike of the same design would require a new determination.

Eighth, the determination does not specify a finish (e.g., proof or uncirculated). So a coin with a standard finish and one with a proof finish could both be issued under the same determination as long as they meet dimensions and design. The design description does not require a particular surface finish.

Ninth, the application clause (s4) means that these coins can be issued alongside ordinary coins of the same denomination. A consumer or business might accidentally treat a silver 5c coin as a standard 5c piece, losing substantial value. There is no requirement that collector coins be marked differently beyond design.

Tenth, the $5 coin in item 16 is base metal (copper, zinc, aluminium, tin) but has a design commemorating Tasmania. This coin’s weight (20.00g ±0.50g) and diameter (38.90mm max) are different from the other $5 coin (item 15, silver, 31.635g). A collector or accountant might mistakenly assume all $5 coins have the same specs.

Compliance with this determination falls almost entirely on the Royal Australian Mint. The Mint must establish internal procedures to ensure that every coin produced under this determination meets the specifications. This includes the following practical steps:

1. Metal sourcing: obtain silver of at least 99.9% purity and gold of at least 99.99% purity, and for the Tasmania $5 coin, obtain the correct copper alloy proportions. Assay each batch to confirm purity before melting.

2. Blank production: produce blanks that weigh exactly the standard weight, accounting for the allowable variation. Use precision weighing and reject any blank outside tolerance. For the silver $1 coin (Item 13, 31.635g) and the gold-plated version (Item 14, same weight), the tolerances are ±0.50g, which is relatively generous but still requires quality control.

3. Die creation: engrave dies that exactly match the described designs. For obverse, ensure “ELIZABETH II”, “AUSTRALIA 2005” (or 2004 for $5), and the monogram “IRB” are present. Reverse designs must be checked against the textual description, which is detailed enough to guide the engraver. For example, the World War II 50c reverse must show a cemetery with three crosses, a Minister of Religion, and four soldiers, plus specified inscriptions.

4. Striking and finishing: use the correct blank diameter and thickness dies, and edge tooling. For $1 and $2 coins, the edge must have the specified number of segments with alternating milled and plain bands. For 50c coins, edge must be plain and shape dodecagonal. Verify that the final coin’s maximum diameter and thickness do not exceed the limits by calliper measurement.

5. Post-strike inspection: weigh coins individually or in statistically valid samples, and reject any outside allowable variation. Visual inspection to confirm design details and edge pattern.

6. Record keeping: maintain records of assay certificates, weight logs, and die approvals to show compliance if challenged.

For private entities (collectors, dealers, banks), compliance is minimal. They should verify that any coin they buy or accept matches the Schedule 1 specs to avoid unknowingly receiving a non-compliant or counterfeit piece. They can use published specifications to test weight, diameter, and magnetic properties. Businesses accepting legal tender should be aware that these coins exist, but no specific compliance action is required unless they choose to refuse them. Banks may handle them as deposits, but the value in circulation is negligible.

Overall, the compliance burden is low because the determination is narrow and the Mint is the only regulated party.