Fully completed proof print of a 1940 PLN 10 bill, unnumbered on proper paper with current watermark.
Invalidated with the "Wetrlos" ("No value") stamp of the era (the proper stamp for invalidating proof prints, also known from the 1941 PLN 100 proof set). A bend in the margin resulting from the folding of the sheet. Unlike other denominations printed at the PWPW in Warsaw at the outbreak of the Warsaw Uprising, the 10 zloty bill was already printed in Vienna, so the waste paper of this denomination is unknown, as in the case of the 1, 20, 50 or 100 zloty 1941 bills. Extremely rare. Only a few pieces known.
