"Aug 22 1894"; also two non-perforated cards, one ½a. and one 1a., dated "Jan 21 93"; all three affixed to card" /> Proof cover 1893 1a., perforated "SPECIMEN/B.W & CO/LONDON" and dated<I> "Aug 22 1894"</I>; also two non-perforated cards, one ½a. and one 1a., dated<I> "Jan 21 93";</I> all three affixed to card | Christie's