![](http://www.alamy.com/thumbs/6/1ED1DAE7-F26E-446F-9F7F-B5DC4293CBD1/2R49B2Y.jpg)
US Navy Naval Mobile Construction Battalion Forty (NMCB-40) calibrates the computer on a new 50-ton linkbelt crane using an 11,850-pound weight
Size: 1145px × 1746px
Photo credit: © Mil image / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, historic, military, reference, vintage