World's Smallest Cabinet Card Photograph. Trade Card for Photographer Hemphill circa 1900?

An extraordinary cabinet card trade card and picture business card for a Pennsylvania photographer at the turn of the century named Edward W. Hemphill.  Hardly larger than a penny, which is unusual enough, but note his "portrait" which appears to show the photographer (?) peering through a monocle.  Fantastic!   Obtained from one of my favorite photography and antique dealers Natalie Curley, who I have mentioned here before.  See some of her objects for sale HERE

Miniature Cabinet Card Photograph circa 1900 (?) Collection Jim Linderman