![CUBA - 1936 - COMMEMORATIVES: 15c light blue 'Free Port of Matanzas' SPECIAL DELIVERY issue a fine IMPERF corner marginal block of four used with central cds. (SG E413a) (CUB/3109)](http://latinamericanphilatelics.com/cdn/shop/products/CUB3109_{width}x.jpg?v=1645797071)
15c light blue 'Free Port of Matanzas' SPECIAL DELIVERY issue a fine IMPERF corner marginal block of four used with central cds. (SG E413a)
15c light blue 'Free Port of Matanzas' SPECIAL DELIVERY issue a fine IMPERF corner marginal block of four used with central cds. (SG E413a)