Stamp from verso: Photographed by Edward A. Hubbard, National Institutes of Health Photography Section Library, Negative Number C967. Title supplied by cataloger.
Handwritten from recto: edit marks for cropping and focusing; William H. Park, 1917. Handwritten from recto: Park, William Hallock, 1863-1939. Title supplied by cataloger.
Sticker from verso: Waksman, Byron H. (M.D.), Professor of Microbiology, Chairman- Department of Microbiology, Yale University. Title supplied by cataloger.
sticker from verso: Dr. Barry R. Bloom, Chairman Dept. of Microbiology & Immunology, Albert Einsteing College of Medicin, 1300 Morris Park Ave. Bronx, NY, 0 1461. Title supplied by cataloger.