1880-83 Large Coloured Corner Letters, Wmk Imperial Crown. 1881 2 1/2d blue pl.22, EL, line perforated imprimatur produced for inclusion into the "Before and After Committee" presentation book, very scarce, being one of 36 possible examples, cert. RPS (1992). (Image)

1882 4d grey-brown pl.18 BL line perf.14 imprimatur mounted in a cardboard bevelled frame from the 1887 Stamp committee presentation album, very rare, only 36 albums were produced many of which are in institutional collections or simply lost, photocopy of the RPS cert. signed by SG (2006). (Image)