1867-80 Large Uncoloured Corner Letters, Wmk Spray of Rose. 1873 3d rose pl.10 BL imperforate imprimatur, mint o.g., very fine and rare, one of only 22 possible examples many of which are in institutional collections. (Image)

1867 10d red brown pl.1 JA-JC mint horizontal strip of three, large part o.g., corner crease at the lower left of JA not detracting from the very fine appearance of this magnificent multiple (S.G. £10'800 as singles). (Image)

1870 1s Die proof printed in brown on white matt card (92x60mm), produced by De La Rue for display at the 1870 International Exhibition, very rare, only two or three examples believed to exist in each colour. (Image)

1873 1s Green pl.7 imperforate imprimatur, mint o.g. top marginal showing current number "383", very fine and fresh, a unique positional example (the other current number example TK remains on the imprimatur sheet in the Post Office archives). (Image)

1873 (May 19) Entire to Genova bearing 6d chestnut pl.12 abnormal, neatly tied by a fine "88" London duplex cancel in black, arrival bs, a superb example of this rare abnormal on cover, cert. PTS (2019) (S.G. £3'800 as used single). (Image)