British Empire - Day 6

1913-21 issue group of De La Rue die proofs, incl. master die proof in black on white glazed card endorsed '3 OCT. 12' and 'Before Hardening', also cut down to stamp size on DLR striking book piece and inscribed 'May 2nd 120 Leads No 2', 72c duty plate die proof and 1c (cut to stamp size) duty proof, mounted on a page, a fine and scarce group.