The Series 1934A $1 Silver Certificate Experimental Issues: Identifying the R and S Varieties by Serial Number Range
In 1944, the Bureau of Engraving and Printing conducted a quiet but historically significant experiment on ordinary $1 Silver Certificates, printing select notes on two different paper stocks and marking them with a red ‘R’ or ‘S’ suffix to track results. Understanding how to identify these experimental varieties by their serial number ranges opens the door to one of the most fascinating and accessible specialty areas in small-size note collecting.
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