Proof 8d. Waterlow file proofs, one of the frame in red marked "14727", "10166" and "O.K. PROOF 3800", and the other of the vignette in blue marked "14728", "10167" and "O.K. PROOF 3799", both on plain paper marked "PROOF RECORD" in red ink and with a 3mm. punch hole; both soiled, especially the former. Also a mint imprint block of twenty (toned). B.P.A. Certificate (1985). S.G. 145. Photo