United States Paper Money Collection United States Paper Money Collection
The Series 1935D $1 Silver Certificate was printed with backs of two different widths — In 1952 the back design was made about 2mm (1/16 inch) narrower than previous backs. The change occured while Series 1935D was still in production, so notes exist with both wide and narrow backs.
Series 1935D wide back on the left compared to the narrow back on the right
The highest known back plate number for a wide back note is 5015, while the lowest plate number for a narrow note is 5017.