Collection PL

Japan 1989 — Komori Currency Technology Intaglio Test Note Mr. Komori

Large-format intaglio test piece produced by Komori Currency Technology on genuine banknote paper. The face presents a finely engraved portrait of Mr. Komori alongside dense Asiatic floral scrolls and security guilloché intended to demonstrate line fidelity, tonal build, and plate pressure control. ... Read more →

United States ca. 1970s – C.O.P.E. Experimental Test Note Serial A82432955A

Blank-format experimental note printed by the Bureau of Engraving and Printing during the 1970s as part of internal testing for the C.O.P.E. (Currency Overprinting and Processing Equipment) program. This machinery represented a major modernization step in U.S. ... Read more →

Confederate States of America 1864 — CSA No Denomination Archival Watermarked Paper

Blank watermarked paper stock prepared for Confederate Treasury note production during the Civil War period, certified by PCGS as CSA Watermarked Paper. This archival sheet represents original Confederate paper bearing the large embedded 'CSA' watermark, visible under transmitted light. The watermark was introduced as a security measure in the Confederacy’s later issues, particularly during 1864 production, as counterfeiting became increasingly widespread under wartime conditions. ... Read more →