Portrait of an Unidentified United States Capitol Police Officer by C.M. Bell of Washington, D.C. (1800′s)

Portrait of an unidentified United States Capitol Police officer by C.M. Bell of Washington, D.C., c. 1800′s.

Source: Library of Congress.

Portrait of a Police Officer Only Identified as Mr. Leonard Posing in an Art Gallery Possibly at the 1864 Metropolitan Fair in New York City

Portrait of a police officer only identified as Mr. Leonard posing in an art gallery possibly at the 1864 Metropolitan Fair in New York City, New York. Attributed to Mathew Brady.

Source.

Police Constable Edmund Forbes Posing With the First German Zeppelin Bomb to be Dropped on London Which Hit the Garden of the Nevill Arms Public House in Hackney (1915)

Police Constable Edmund Forbes posing with the first German Zeppelin bomb to be dropped on London which hit the garden of the Nevill Arms Public House in Hackney on May 30, 1915.

Source.

Hand-Colored Tintype Portrait of an Unidentified Policeman

Hand-colored tintype portrait of an unidentified policeman.

Source.

Hand-Colored Daguerreotype Portrait of a New York City Policeman (1850)

Hand-colored daguerreotype portrait of a New York City policeman, c. 1850.

Source.