Daytonian777 Posted April 27, 2020 Share #1 Posted April 27, 2020 I wanted to show a piece of USAF history that I personally think is cool. This is a 1956 dated Felsenthal & Sons MB-4 Dead Reckoning (navigation) computer that I picked up a couple of months ago. It also came with the leather storage sleeve which is not shown here. Link to comment Share on other sites More sharing options...
Daytonian777 Posted April 27, 2020 Author Share #2 Posted April 27, 2020 A couple close-ups of the date and serial number. Link to comment Share on other sites More sharing options...
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