The question to be resolved is whether I should, in the exercise of the discretion conferred by s. 38 of the Act, accept the proved use of the associated registered trade mark by the respondent "as an equivalent for the use required to be proved" in this case. Of course, what s. 23 (l.) (b) requires is proof by an applicant of non-user during the specified period in order to substantiate his application for removal but it is clear that proof by the respondent in such an application of "use in good faith of the trade mark in relation to those goods" during the relevant period will result in the dismissal of the application and there can, I think, be no question that s. 38 authorizes the Court to accept the use of an associated registered trade mark as "an equivalent" for such proof. But that section is silent - no doubt advisedly - as to the basis upon which the discretion should be exercised and leaves to the Court the problem of working this out. In the absence of any guiding authority on the point some general help may, perhaps, be obtained from the observations of the Master of Rolls when speaking of the discretion reposed in the Court by the proviso to s. 26 (1) of the English Act of 1938 (J. Lyons & Co. Ltd.'s Application [1] ). He said: "the discretion in the proviso should, in my judgment, be exercised as a matter of common sense - "in a business sense" (to cite again Lindley L.J.'s phrase) - in the light of all the circumstances of the case, which will, of course, include the nature of the mark itself and the relevant business history of the applicants and the registered proprietor respectively. Again, however, regard must in my view be had to the legislative purpose of the Act, as I have earlier attempted to define it. In other words, the tribunal, bearing in mind all the circumstances of the case, will have to ask itself the question, whether the grant of the application would unfairly or unjustly restrict or invade the statutory monopoly acquired for its trade by the registered proprietor" [1] . It may be observed, however, that the "use" which may be relied upon pursuant to the proviso to s. 26 (1.) (the equivalent of s. 23 (2.) of the Commonwealth Act) is a use in relation to some of the goods in respect of which the mark is registered, whereas under s. 38 the use which may be accepted as an equivalent to the use required to be proved may be a use in relation to goods which, though of the same description as the goods in respect of which the impugned mark is registered, are not goods in respect of which that mark is registered. Nevertheless, it seems to me the discretion in either case ought to be exercised on the same general principles and I add that, in my view, it is for the respondent in an application such as this to satisfy the Court affirmatively that some reason exists justifying the exercise of the discretion in his favour. However, it was contended before me that "women's shoes" and "frocks, suits and coats for feminine wear" are not goods of the same description, that the two marks should not have been registered as associated marks and that the use by the respondent of the mark "Miss Sydney" in relation to shoes should, therefore, not be held to be a user of an associated trade mark within the meaning of s. 38. I think there is considerable force in the contention that the goods in respect of which each mark is respectively registered are not goods of the same description but it cannot be contested that the mark was, in fact, an associated registered mark, that it was used by the respondent consistently during the relevant period and that, pursuant to s. 38, its use may be accepted as an equivalent for the use required to be proved. Nevertheless, it is of importance to consider, among other matters, the nature of the use made of the mark including the character of the goods in relation to which it was used.