Roberts Torpedo

Crawford County · dedicated 1954 · Smock Blvd. (PA 8), near Dutch Hill Rd., S end of Titusville

First successful device for increasing the flow of oil by setting off an explosion deep in a well. It was publicly demonstrated in 1865. The nitroglycerin was made .4 mile south of here, along Hammond Run.

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David Rumsey Map Collection, Stanford Libraries

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under a mile from where William Gabby lived in the 1760s

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Marker data: Pennsylvania Historical and Museum Commission via data.pa.gov

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