1. Philatelic 72/217/2/15 Reference (shelfmark): Philatelic 72/217/2/15 Title: Philippines, United States of America (USA) Colonial Administration Airmail Stamp Issue: Wolfgang Von Gronau Round-the-World Flight Scope & Content: Pre-existing definitive stamps overprinted by the Philippine Bureau of Printing. Collection Area: Philatelic Collections Languages: English Date Range: 27 Sep 1932 Extent: 7 Items