1914 1d carmine mint block of eight from the lower right corner of the pane showing watermark variety "POSTAGE" inverted on the bottom row and a second "POSTAGE" upright in the sheet margin at foot, only three stamps mounted in the top row, a very rare watermark variety, cert RPS (2013) (S.G. Spec. R2c). (Image)

1936-37 1d red imperf. imprimatur block of four from the top of the sheet, mint n.h., the reverse stamped "NPM IMPRIMATUR", very rare with this block containing four of the six examples released from the NPM archive sale. (Image)

1936-37 5d yellow-brown imperf. imprimatur in mint n.h. block of four from the top of the sheet, the reverse stamped "NPM IMPRIMATUR", very rare with this block containing four of the six examples released from the NPM archive sale. (Image)

1936-37 2s6d purple on yellow imperf. imprimatur in mint n.h. block of four from the top of the sheet, the reverse stamped "NPM IMPRIMATUR", very rare with this block containing four of the six examples released from the NPM archive sale. (Image)

1951 Postage Due 4d blue imprimatur mint n.h., very fine (S.G. £2'500). (Image)

1951-54 KGVI 1s ochre with wmk sideways-inverted variety used, three faint tone spots otherwise fine, incl. normal used (S.G. £2'800 as mint). (Image)

1959-63 1/2d orange on whiter paper imperf. imprimatur pair from the top of the sheet, mint n.h., each with BPMA handstamp on reverse, very fine and scarce. (Image)

1971 Postage Due 50p mint n.h. imperf. imprimatur, very fine. (Image)