St Vincent - Grenadines 1985 Shell Fish $3 (West Indian Top Shell as SG 363) set of 6 imperf progressive colour proofs comprising the four individual colours plus 2 & 3-colour composites unmounted mintNote: Due to a very fortunat……Details Below

St Vincent - Grenadines 1985 Shell Fish $3 (West Indian Top Shell as SG 363) set of 6 imperf progressive colour proofs comprising the four individual colours plus 2 & 3-colour composites unmounted mintNote: Due to a very fortunate purchase, I am able to sell this set at less than £10 - other sellers on eBay are offering similar progressive proofs at between £75 and £125 per set.