1880-83 Large Coloured Corner Letters, Wmk Imperial Crown. 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)