PMG 1935A $1 "Experimental-R" Silver Certificate FR1609 VF25

Experimental notes are rare U.S. currency issued during testing periods by the Bureau of Engraving and Printing to experiment with new materials or printing methods. Typically produced in small quantities, these notes were marked with symbols or unique serial numbers to distinguish them from regular notes. Issued primarily in the 1930s and 1940s, they were part of efforts to improve currency durability or reduce costs during challenging economic times. Due to their limited production and historical significance, surviving experimental notes are highly sought after by collectors, making them worth more, especially when found in pristine condition. Graded PMG VF25, this  is a hard to find piece.