First automatic pneumatic rock drill used at Hoosac Tunnel
Dublin Core
Title
First automatic pneumatic rock drill used at Hoosac Tunnel
Subject
Tunnels -- Massachusetts -- Photographs.
Hoosac Tunnel (Mass.) -- Photographs.
Date
2010-05-06T18:24:44Z
2010-05-06T18:24:44Z
1865
Type
Image
Files
Collection
Citation
“First automatic pneumatic rock drill used at Hoosac Tunnel,” Digital Commonwealth , accessed May 23, 2013, http://digitalcommonwealth.org/items/show/13595.
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