PERU 1883/95 "TRIANGLE" OVERPRINTS SPECIALIZED COLLECTION. 100s of stamps plus 24 cover (incl postal stationery) neatly arranged and annotated (in Spanish) on quadrille pages, full range of overprints in different colors plus overprint errors and varieties, mint incl multiples, used with assortment of cancels, reference forgeries, cover destinations include domestic, France (4), USA (5), England, Germany (4), Austria, used as postage due on an incoming postal card from USA, etc., mostly F-VF (see online scans)

CV. 5,000-7,500