Smithsonian - National Museum of American History, Behring Center

 
Physical Sciences Collection - Surveying and Geodesy

Browse Makers | Browse Instruments | Index

Back
 

Metric Chain - click to enlarge

Click photos to enlarge.

Metric Chain

Catalogue number:
1994.0280.02

Inscriptions:
W. & L. E. GURLEY TROY, N.Y.; 10 M STEEL No. 12

Discussion:

W. & L. E. Gurley began making metric chains in the 1870s, later explaining that the French meter was "very generally used as a standard in South America." This chain has 50 links made of No. 12 steel wire, brass handles and tallies, and measures 10 meters overall. The links and rings are brazed shut.

Ref: W. & L. E. Gurley, Manual of the Principal Instruments Used in American Engineering and Surveying (Troy, N.Y., 1878), p. 9.

W. & L. E. Gurley, Manual of the Principal Instruments Used in American Engineering and Surveying (Troy, N.Y., 1893), p. 254.

Further Information:

Gurley
Surveyor's Chain

Back