A French Sloan Letter Pocket Card with line sizes of 20/400 to 20/10 equivalent on one side. The continuous French text is printed on the reverse side with line sizes 20/80 to 20/16. 3.75" x 6.25" (9.5 cm x 16 cm).
16 inch, 40 cm testing distance.
A French Sloan Letter Pocket Card with line sizes of 20/400 to 20/10 equivalent on one side. The continuous French text is printed on the reverse side with line sizes 20/80 to 20/16. 3.75" x 6.25" (9.5 cm x 16 cm).
16 inch, 40 cm testing distance.