This 1.55 złoty stamp from Poland features Leonardo da Vinci’s famous Renaissance painting Dama z łasiczką (Lady with an Ermine), depicting Cecilia Gallerani. Issued in 1955, the stamp is engraved with exquisite detail and framed with a classical ornamental border. It highlights Poland’s strong tradition of celebrating fine art on postage, particularly masterpieces housed in Polish collections. The painting itself is part of the Czartoryski Museum in Kraków. For collectors, this stamp is admired both for its cultural significance and fine engraving work.