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Continue to ChatSummer Isles 1970 Decimal Conversion Overprints on Fish & Maps Definitives - Thick Bar (6v, ½p to 7½p, U/M) https://www.grahamlandstamps.co.uk/shop/stamps/cinderellas/gb-offshore-islands/summer-isles/summer-isles-1970-decimal-conversion-overprints-on-fish-maps-definitives-thick-bar-6v-%c2%bdp-to-7%c2%bdp-u-m/