Cuba 1957 - Sc C151 - (EDIFIL 677) - INTER-AMERICAN PRESS ASSOCIATION.
Stamp issued to commemorate the 12th Inter-American Press Association Conference in Havana, in an unused, original gum, block of 4. All the stamps are NEVER HINGED since the block was hinged only on the selvedge. The 2015 Scott catalogue value for singles is US $13.00 - The 2012 EDIFIL catalogue for 4 never hinged sets as singles is € 14,40 or US $ 18,70