Physician who developed the Schick test for determining susceptibility to diphtheria. Glossy 7.75 x 9.5 photo reproduction of a a portrait, signed and inscribed in blue ink “To Barry Malvern, Dr. Bela Schick.” In fine condition, with neatly trimmed edges, a few light scattered creases, two small corner creases and a small area of light discoloration in the upper right corner. R&R COA.