![](http://www.alamy.com/thumbs/6/8488BB51-4A82-468A-83EA-F9B5A0E2AEA6/2R4ANC0.jpg)
US Navy Engineering Aide Constructionman Doug Gaffney, assigned to Naval Mobile Construction Battalion Four Zero (NMCB-40), Detachment Sasebo, uses a Philadelphia Rod to adjust for elevation
Size: 1153px × 1734px
Photo credit: © Mil image / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, historic, military, reference, vintage