Mark Keathley

A signed and numbered print bearing the pencil-written initials A/P. Artist proofs are identical to their S/N (Signed/Numbered) counterparts, with the exception that there are fewer A/Ps, thus making them more desirable to collectors. Sometimes the artist may retain the artist proofs. 

Before the advent of modern technology, the artist would pull every tenth print from the press during printing and examine it personally for quality control. Since these prints had been handled by the artist and personally approved, they were called Artist's Proof prints. This quality control method is no longer necessary.

The tradition of numbering 10 percent as Artist's Proofs continues, because of consumer demand. Because of their restricted number, artist's proofs are sold at a higher price. Some collectors will purchase only Artist's Proof prints.