Seychelles 1952 15c deep yellow-green error, SG161/aSeychelles 1952 15c deep yellow green 'Fishing Pirogue' error, SG161 a. A fresh unmounted mint block of 15 (5x3) with full original gum, being the top three rows of a sheet with full margins, showing watermark error w9a 'CROWN MISSING' on R2 3 (the centre stamp). A rarity in this fully positional form. The Stanley Gibbons catalogue value is 900+. This was the first King George VI set issued by the Seychelles and deviated from the tradition of previous