5th Conference of World Confederation of Organizations for the Teaching Profession (WCOTP)

Commemorating the Fifth Annual Conference of the WCOTP held in Manila from August 1-8, 1956.

August 1, 1956
5c Del Pilar definitive of 1952 (#105) ovpt. by Phil. Bureau of Pronting. Perf. 12

No.----------Denomination----------Quantity
#159-----------5c ovpt----------------300,000