1. General Collection 5_52 Reference (shelfmark): General Collection 5_52 Title: Portuguese Guinea Paper Money Scope & Content: Banco Nacional Ultramarino (Provincia de Guinea) 1921 Issue 2 1/2 Escudos specimen overprinted 'SPECIMEN' in red ink. Collection Area: Philatelic Collections Languages: English Date Range: 1 Jan 1924 Extent: 1 Item