| Matson Photo Service (photographer) Uganda. Ruwenzori Range. Telephoto and infra red 1936 Negative, nitrate 4 x 5 in. (or smaller) Library of Congress, Prints and Photographs Division G. Eric and Edith Matson Photograph Collection, LC-DIG-matpc-00348 (digital file from original), Call Number: LC-M31- 8354 [P&P] LL/106179
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