Fr. 237. 1923 $1 Silver Certificate. PCGS Banknote Choice Fine 15 Details. Additional Serial Number Overprint Error.KD Block. For all intents and purposes this note is your typical $1 Silver Certificate issued under the Series of 1923. Featuring the Speelman - White signature combination along with clear evidence of prolonged circulation, this note may seem indistinguishable from the thousands of surviving pieces known for this Friedberg Number save for one key distinction. Looking right, one may observe that the rightmost serial number has been duplicated or more specifically overprinted by a different serial number which reads "K64687281D." These errors are extremely rare and rarely offered. Per Frederick J. Bart in his book <em>United States Paper Money Errors</em>, this note represents the sole verified occurrence of this error type on a large-size type note making this note something of a unicorn for those sophisticated collectors who specialize in errors. The comment from PCGS Banknote stating "Margin Rebuilt" might as well be immaterial as this note hasnt been offered at auction since 2013 making this a rare opportunity to be had. PCGS Banknote comments "Margin Rebuilt."
