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.
Piston and oscillating arm.
Photographer: Mark Hilton
Taken: October 25, 2017
Caption: Piston and oscillating arm.
Submitted: November 1, 2017, by Mark Hilton of Montgomery, Alabama.
Database Locator Identification Number: p402211
File Size: 3.905 Megabytes

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