St Vincent - Grenadines 1985 Shell Fish 60c (Queen Conch as SG 361) 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 A310 - other sellers on eBay are offering similar progressive proofs at between A375 and A3125 per set.
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