$5/ $10 1934-D DOUBLE DENOMINATION ERROR Dual Denom King of Errors PMG Ch Unc 64EPQ

$5 / $10 1934-D Double Denomination Error

Often dubbed the "King of Errors," the dramatic nature of the Dual Denomination error type has rightly earned it the privilege to carry that honor upon its proverbial brow. By far one of the rarest error types as one would expect; this error is typically the result of an honest mistake at the Bureau of Engraving & Printing. Per Dr. Frederick J. Bart in United States Paper Money Errors, this error type is the result of the procedure associated with the printing process as the back and face printing are applied at different points in the process. The back printing is applied first while the face printing is applied later via a separate plate impression. This note was originally destined to be a $10 Federal Reserve Note, but at some point confusion arose and the partially printed sheets were allocated to receive a face impression from a plate intended for the $5 denomination. Passing inspection through some unknown means, these notes made their way to their destination banks where a number were smartly saved. This particular example is representative of roughly three dozen or so pieces recorded by Bart, but these pieces are tightly held and seldom offered at auction. The two most recent instances of this error being offered for this particular Friedberg Number was in January 2024 where an example (J43312750A) sold for $44,000 while another example (J43180829A) sold in January 2023 for $38,400. Both of those pieces were graded Gem Uncirculated 65 EPQ by PMG, but such a distinction is immaterial on this error.