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Photograph of Hermann Collitz
(Johns Hopkins University Sheridan Libraries, 1923)
Portrait of Collitz at approximately 70 years old.
Photograph of Hermann Collitz
(Johns Hopkins University Sheridan Libraries, 1923)
Portrait of Collitz at approximately 70 years old.
Photograph of Bartgis McGlone
(Johns Hopkins University Sheridan Libraries, 1923)
Portrait of McGlone at approximately 43 years old with his signature.
Photograph of Bartgis McGlone
(Johns Hopkins University Sheridan Libraries, 1923)
Portrait of McGlone at approximately 43 years old with his signature.