1924-26 Wmk Block Cypher 1/2d to 1s mint og set of twelve with INVERTED WATERMARK, a very fine and difficult set to assemble, the 10d and 1s with certs RPS (2003) (Image)

1924-26 Wmk Block Cypher 1/2d green with "SPECIMEN" type 32 overprint, mint og (only light hinge trace), very fine and scarce (SG Spec. N33ua, £2'000) (Image)

1924-26 Wmk Block Cypher 1 1/2d Red-Brown right hand marginal showing variety imperf. between right side and margin, mint og, very fine and scarce (SG N35(1)f, £1'500) (Image)

1924-26 Wmk Block Cypher 1 1/2d red-brown printed on the gummed side, small hinge trace on the blank side, very fine example of this scarce variety (SG £650) (Image)

1924-26 Wmk Block Cypher 1 1/2d Red brown mint nh advertising booklet pane with "India Rubber Sponge / R.G. Mc.Kinlay" advertisements in green, trimmed perfs at right, nevertheless an exceptional example of this very rare and most sought after booklet pane (SG Spec. NB15(72), £4'000) (Image)

1924-26 Wmk Block Cypher 3d Violet with "SPECIMEN" type 32 overprint, mint nh, very fine and rare (SG Spec. N38t, £2'000+) (Image)

1924 British Empire Exhibition 1d & 1 1/2d mint og set of two with "CANCELLED" type 28 overprint, lightly toned gum as usually seen, very fine and scarce, cert. BPA (2015) (SG Spec. Ncom1v & Ncom2v) (Image)

1929 PUC 1/2d to 2 1/2d set of specially prepared imperforate miniature sheets of four in the issued colours on thin glazed paper, each mounted in a gold bevelled sunken card frame for presentation purposes, offered together with a letter dated May 7th 1929 from Sir G.E.P. Murray, KCB, Chairman of the Committee of selection, at the direction of the Postmaster General to Campbell Dodgeson, C.B.E., a member of the committee, thanking him for his services and requesting confidentiality until the day of issue (May 10th), an important and very rare set, ex Maximus (Image)

1934-36 Photogravure 1/2d to1s set of eleven stamps each neatly tied to an envelope by Sutton Coldfield & Birmingham cds for their respective FIRST DAY OF ISSUE, a wonderfully visual and rare first day cover (Image)

1934-36 Photogravure 1s bistre-brown tied to a plain "Oswald Marsh" first day cover, tied by a crisp Norwood machine cancel for FE.24.1936 on the first day of issue, very fine and scarce (Image)