1. Philatelic 72/217/6/15 Reference (shelfmark): Philatelic 72/217/6/15 Title: Republic of the Philippines Postage Stamp Issue: Official Scope & Content: Pre-existing stamps with 'O. B.' overprint. Collection Area: Philatelic Collections Languages: English Date Range: 1 May 1948-25 May 1948 Extent: 2 Items