PMG published an interesting article about multiple impression errors.
Here's an excerpt - see the complete article online.
Paper Money Guaranty® (PMG®) is the world's leading authority on banknote errors, a popular segment of numismatics. In Error Note Chronicles, we take an in-depth look at different errors. This month's topic is the Multiple Impression Error.
Banknotes are printed in sheets in several stages, with ink being applied to one side at a time. Sometimes, more than one print is applied to a particular side of a sheet; for instance, the serial numbers on US currency are printed on the sheet separately from the main design.
When a banknote unexpectedly gets an extra print, then a Multiple Impression Error occurs, such as the one on this 1985 $10 Federal Reserve Note (Richmond). The front of the note contains the expected front design that features Alexander Hamilton but it also includes the Treasury Building and other elements from the back design. It is interesting that the plate number on the back of the note (536) doesn't match the one associated with the one with the back design that appears on the front of the note (534). This note realized $6,000 in a Heritage Auctions sale in January 2022.
This 1977A $5 Federal Reserve Note (San Francisco) has a Non-Standard Multiple Impression Error: The extra impression is on the wrong side of the note, it is inverted and it is at an angle (actually showing portions of the back design from several notes). This note is being offered in a May 2023 Heritage Auctions sale, with an estimate of at least $5,000.
Great errors. While I'm glad someone documented where they found the $10 note, I'm not sure what to think about the handwritten note at the bottom right.
To read the complete article, see:
Error Note Chronicles: Multiple Impression Error
Wayne Homren, Editor
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