WWII U.S. Navy Binoculars

[ehowton]

The binoculars in my series of photos belonged to my grandfather-in-law who was a bombardier on a B-26 Marauder during WWII and flew combat missions over the European theatre. They are original U.S. Navy Mark 21’s as indicated by the markings at the focus point.

A short story he authored of one of his missions can be found here:
https://ehowton.livejournal.com/404093.html