1. Philatelic 72/217/3/4 Reference (shelfmark): Philatelic 72/217/3/4 Title: Commonwealth of the Philippines Postage Stamp Issue: Madrid-Manila Flight by Arnaiz and Calvo Scope & Content: Pre-existing stamps overprinted by the Philippine Bureau of Printing. Collection Area: Philatelic Collections Languages: English Date Range: 6 Sep 1936 Extent: 3 Items