machinist
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Justin T. Sisco, a Navy chief aviation machinist, stands beside a tree marking the boundary of a hastily established helicopter field at the Tampico Country Club which carries his name. U. S. Navy helicopters used this field as one of their bases for dist
by San Diego Air & Space Museum Archives
by San Diego Air & Space Museum Archives
No known copyright restrictions(著作権制限なし)
![[Machinists Using Niles-Bement-Pond Steam Hammer, Texas & Pacific Railway Company]](http://farm3.static.flickr.com/2842/12800954763_10e5fc0de6_m.jpg)
[Machinists Using Niles-Bement-Pond Steam Hammer, Texas & Pacific Railway Company]
by SMU Libraries Digital Collections
by SMU Libraries Digital Collections
No known copyright restrictions(著作権制限なし)
No known copyright restrictions(著作権制限なし)
No known copyright restrictions(著作権制限なし)
No known copyright restrictions(著作権制限なし)
No known copyright restrictions(著作権制限なし)
No known copyright restrictions(著作権制限なし)
No known copyright restrictions(著作権制限なし)
No known copyright restrictions(著作権制限なし)

Railroad parts. Baldwin Locomotive Works. Machinist milling down part of a drive-shaft on big locomotive, March 1937
by U.S. National Archives
by U.S. National Archives
No known copyright restrictions(著作権制限なし)
241件~300件 (全 2,654件)