Collection PL

Poland 1936 — 50 Zlotych Reverse Progressive Proof (Pick 78pp2)

Progressive proof of the reverse design for the unissued 1936 50 Zlotych — one of the most advanced and visually ambitious notes ever conceived by the Second Polish Republic. Printed by the Państwowa Wytwórnia Papierów Wartościowych (PWPW) in Warsaw, this sheet captures a transitional stage in the birth of a masterpiece. The reverse artwork was executed under the artistic supervision of Wacław Borowski and engraved by Włodzimierz Vacek, two of the most accomplished figures in pre-war Polish graphic arts. ... Read more →

Portugal 1917 — Banco de Portugal 50 Mil Réis Front Progressive Proof (Pick 110pp1)

Front progressive proof for the Banco de Portugal 50 Mil Réis, printed in a single intaglio color to test composition and line fidelity before the final multi-color stones were prepared. Without underprint or overprint, it exposes the engraver’s hand—the bare guilloche network and portrait cartouche that later defined the completed note. PMG 25 EPQ Very Fine. ... Read more →