Description: Photograph of the Night Watchman's clock used by Chief Cribbs for the Arlington Police Department in the mid 1930s. It contained a roll of paper that recorded the time and location of the watchman when he inserted a special key from the location he was checking. A special key was housed at each location. It continued in use until the early 1950s at which time officers were required to hand check and note the locked doors to businesses.
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