Poland 1988 - 50 Zlotych Prefix HK Issued Note (Pick 142c)
Production of the note involved multiple printing stages typical of late twentieth-century security printing at PWPW. A multicolor offset background established the geometric security pattern across the note, followed by intaglio engraving for the portrait and denomination elements. Serial numbers were applied in red ink in a later pass, while the final typographic stage added the date and the printed signatures of the issuing officials. Read more →