American pediatrician (1877–1967) who devised the Schick test to determine susceptibility to diphtheria and also coined the term ‘allergy.’ Vintage matte-finish 6.5 x 9.5 photo of Schick, signed and inscribed in blue ballpoint, “To Mr. Jacob Bacal, with many thanks for his kind letter, Dr. Bela Schick.” In fine condition. Accompanied by the original mailing envelope. RR Auction COA.
