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.
An Architonnerre or steam cannon designed by Leonardo da Vinci
Photographer: Leonardo da Vinci
Caption: An Architonnerre or steam cannon designed by Leonardo da Vinci
Submitted: November 1, 2016, by Barry Swackhamer of Brentwood, California.
Database Locator Identification Number: p368105
File Size: 0.035 Megabytes


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