American Sizes Chart Vol.8, No.1, page 8, 1995


This is a conversion chart for the name of a French frame and the reference of the sizes of the picture plane, such as a 10-P, which translates into a size of 21 5/8″ x 14 15/16″ representing classic proportions for portraits, landscapes and seascapes.

This chart actually gives the classical sizes in inches for American usage.