1. Henke Coll 1_231 Reference (shelfmark): Henke Coll 1_231 Title: United States of America Prominent Americans Definitive Issue $1 stamp Scope & Content: Marginal block of four perforated MNH stamps with control number depicting the US Playwright Eugene O'Neill. The stamp was designed by N. Todhunter. Collection Area: Philatelic Collections Languages: English Date Range: 16 Oct 1967 Extent: 4 Items