Here at the Frick Art Reference Library we have a collection of over 900,000 study photographs of art works, from approximately the 4th century A.D. to the mid-20th century, concentrating on western fine arts. The collection is partially indexed by subject, so I checked to see if we had additional portraits of Ptolemy not listed on your website. Under the heading "Ptolemaeus, Claudius (fl. 127-151)" I found listed the following works. We have reproductions of each (generally black and white photographs), with varying amounts of descriptive/historical information, such as provenance and bibliographic citations. I would be happy to send you photocopies of any of these, with our compliments. We may be able to provide digital scans of the images as well, depending on permissions/copyright. (James Mitchell)