US Notes

Experimental Notes

Series 1935A $1 Silver Certificate Varieties: The R and S Experimental Notes Explained

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In 1944, the U.S. Bureau of Engraving and Printing conducted a rare printing experiment that produced two distinct varieties of the Series 1935A $1 Silver Certificate, each stamped with a red ‘R’ or ‘S’ suffix. These experimental notes represent one of the most fascinating and collectible chapters in modern U.S. currency history, and understanding them can make a real difference at auction.

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The Series 1934A $1 Silver Certificate Experimental Issues: Identifying the R and S Varieties by Serial Number Range

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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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The Series 1935E $1 Silver Certificate Experimental Variety: Identifying the Unique Paper Trial Notes Produced in Limited Quantity

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The Series 1935E $1 Silver Certificate experimental variety represents one of the most intriguing production anomalies in mid-20th century American currency history, born from the Bureau of Engraving and Printing’s post-World War II effort to find a more durable paper stock. Understanding how to identify these scarce trial notes, distinguish them from standard 1935E issues, and assess their collector value can open a rewarding specialty within Silver Certificate collecting.

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