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

Digital Collection

Hoosac Tunnel Photographs

URI

http://hdl.handle.net/2452/48673

Date Issued

1866

Type

Image

Notes

Title supplied by cataloger.

Hoosac Tunnel Photographs

File(s)

Name

ocm36498507-373-38.jpg

Size

16.24 MB

Format

JPEG

Checksum (MD5)

215fb787bc73aaeeb320ba42155179a5