Douglas 20 January 1924 Black Promoted to Sergeant
Douglas 20 November 1926
Douglas 20 July 1926
San Francisco Chronicle
January 8, 1903
Obituary San Francisco Examiner
18 April 1939
San Francisco Police Sergeant star #123, issued to Frank M. Black who joined the department on November 25, 1902.
Hallmarked Irvine & Jachens 1027 Market St. S. F.,
marked STERLING and dated 8-7-21.
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