[Milsurplus] Test Set 1-56-A

[Ray Fantini]

Ok, I have been into buying up pre and early WW2 radio stuff for a while
now, and just bought a Weston tube tester and some other stuff in a box
off Ebay.
It has a tag labeled  Test Set 1-56-A, although I think it may be a
I-56 -A. Anyone have any idea of what it was originally grouped with? it
appears to pre date the Weston 788 and I thought that was one of the
oldest tube tester used by the military. 
If you want to see it go to:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2564467218&ssPageName=ADME:B:EOAB:US:6

Ray Fantini KA3EKH