or consequential. For such a purpose the provision would need to
be much more widely expressed - so widely that sec. 528, which
specifically deals with income tax, would be unnecessary. Sec. 52a
is framed in terms which do not describe the loan or investment.
It enumerates the securities used in connection with Commonwealth
loans. Some of these instruments merely evidence title, as stock
certificates ; others, as bonds, are themselves the title to the loan.
But the immunity is given to these instruments as such, and it is
against a tax levied upon them. The tax specifically inhibited is a
stamp tax, a tax that is imposed directly upon instruments in virtue
of their character or legal description. The expression "stamp
duty or other tax " appears to me to describe taxes levied immediately
upon the instruments or securities as such, whether by reference to
possession, ownership, transfer or otherwise, but not to include
indirect or consequential burdens affecting property in general.
The provision, so construed, does not exclude the securities from
estate duty. That duty is levied upon the amount by which the
value of an aggregation of property exceeds the deceased's liabilities.
The Estate Duty Assessment Act assumes that, before the tax is
made effective, the administrator has already been clothed with
title. It is then imposed on the value as assessed under the Act
of the estate in the hands of a person charged as its administrator
(Shelley v. New South Wales Deaf, Dumb, and Blind Institution
(1)). The subject of taxation with which the Hstate Duty Assess-
ment Act deals is the conglomerate mass called his estate considered
as a unity and composed of all such property as he has owned at any
time within a year before his death and has not disposed of for
value (National Trustee, Executors and Agency Co. of Australasia v.
Federal Commissioner of Taxation (2)). A duty of this character
does not appear to me to be such a tax as sec. 52a of the Common-
wealth Inscribed Stock Act excludes. It is not a tax upon the instru-
ments or securities as such, and it is not a tax upon the transfer of
those securities. It is not imposed directly upon them, and it does
not select them for any particular burden. It does no more than
include their value in the account from which the taxable net balance
is obtained.