1951, World Chess Champion Jose Raul Capablanca, imperforated complete set of seven in bottom sheet margin blocks of four, full OG, NH, VF and extremely rare, especially in multiples, reportedly only two such sets of blocks known

Air Post stamps

1935, First Aerial Train from Havana to Miami, black surcharge +10c on 10c red, left sheet margin imperforated block of four, full OG, NH, VF, C.v. $140++

75.00

1948-60, Centenary of the First Postage Stamp, three imperforated souvenir sheets of four, each one with different air post overprint or surcharge, full OG, NH, VF, C.v. $130
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75.00