Photograph as originally submitted to this page in the Historical Marker Database www.HMdb.org. Click on photo to resize in browser. Scroll down to see metadata.
Automatic Block Signals and Marker
Photographer: Craig Baker
Taken: May 6, 2023
Caption: Automatic Block Signals and Marker
Additional Description: Pre-fabricated concrete telephone booth at right.
Submitted: May 11, 2023, by Craig Baker of Sylmar, California.
Database Locator Identification Number: p723311
File Size: 3.422 Megabytes

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