Photograph as originally submitted to this page in the Historical Marker Database Click on photo to resize in browser. Scroll down to see metadata.
Signal Knob Marker
Photographer: Devry Becker Jones
Taken: October 31, 2020
Caption: Signal Knob Marker
Submitted: November 1, 2020, by Devry Becker Jones of Washington, District of Columbia.
Database Locator Identification Number: p547069
File Size: 6.338 Megabytes

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