1937 Philatelic sheet, Sugar industry

Product Description
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Hojita filatelica patrocinada por la Comision de la Industria Azucarera, consta de cuatro paginas 7 X 9.5 inches.
The cover is shown in the image, the other 3 pages gives us an inside story of the purpose of the issue, and historical details about the stamps and the cuban sugar Industry.
