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Continue to ChatSummer Isles 2001 Perthshire – Big Tree Country - Se-tenant Strip (6v, 15sg to 1PS, U/M) https://www.grahamlandstamps.co.uk/shop/stamps/cinderellas/gb-offshore-islands/summer-isles/summer-isles-2001-perthshire-big-tree-country-se-tenant-strip-6v-15sg-to-1ps-u-m/