24.—(1) Where a drawing or other representation or specimen cannot be given in the manner aforesaid, a specimen or copy of the trade mark may be sent either of full size or on a reduced scale, and in such form as the Registrar may think most convenient.
(2) The Registrar may also, in exceptional cases, deposit in the Registry a specimen or copy of any trade mark which cannot conveniently be shown by a representation, and may refer thereto in the register in such manner as he may think fit.