1937-239 CUBA. REPUBLICA. 1937. Ed.326. ESCRITORES. 10c MEXICO ARCHEOLOGY. MUESTRA PROOF. GOMA MANCHAS.
1937-243 CUBA. REPUBLICA. 1937. Ed.292-93. JOSE MIGUEL GOMEZ. MUESTRA PROOF SET. GOMA MANCHAS.
1937-329 CUBA REPUBLICA 1937 ABNC COLOR PROOF 2c WRITTER & ARTIST BRASIL BRAZIL
1937-330 CUBA REPUBLICA 1937 ABNC COLOR PROOF 2c WRITTER & ARTIST CANADA
1943-71 CUBA REPUBLICA 1943 2c ABNC COLOR PROOF QUINTA COLUMNA SPY SPIES.