Rock drill invention by John Christiansen in connection with the Hoosac Tunnel

URI
http://hdl.handle.net/2452/48673
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Date
1866
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Date Accessioned
2010-05-06
Date Available
2010-05-06
LCSH Subject
Tunnels -- Massachusetts -- Photographs.; Hoosac Tunnel (Mass.) -- Photographs.
Type
Image
OCLC Number
ocm36498507