A sample paper banknote is a non-payment copy of a paper banknote (including watermarks), which is intended for familiarization with bank employees, the public and organizations. Has special overprints and perforations. “Specimens” are also collectibles in bonistics. The cost of a “sample” is usually several times higher than the cost of “full-fledged” banknotes, because they are relatively rare and there are requirements for their withdrawal. As a consequence of the high price, fake “samples” are produced for collectors.