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Brennan

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A standard tool of hard-rock geologists, this long-handled, medium weight hammer-shaped sledge is called a Nolan hammer. Thomas Brennan Nolan (1901-1992) worked as a geologist and served as seventh Director of the U.S. Geological Survey from 1956 to 1965. Nolan developed this hammer in the early 19...
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Prototype Nolan Hammer
A standard tool of hard-rock geologists, this long-handled, medium weight hammer-shaped sledge is called a Nolan hammer. Thomas Brennan Nolan (1901-1992) worked as a geologist and served as seventh Director of the U.S. Geological Survey from 1956 to 1965. Nolan developed this hammer in the early 19...
Location: Reston, VA, USA
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