Unused on cover / entire letter GREEN TURTLE CAY: 1912 envelope to U.S.A. bearing 1d. with a fair strike of Type 7I and 1921 envelope registered to Scotland, bearing 2½d. block of four with three fine strikes of Type 7I and with registration label alongside

Details
Unused on cover / entire letter GREEN TURTLE CAY: 1912 envelope to U.S.A. bearing 1d. with a fair strike of Type 7I and 1921 envelope registered to Scotland, bearing 2½d. block of four with three fine strikes of Type 7I and with registration label alongside