[Milsurplus] Info Help

[laptops]

I just got with a whole bunch of mil radio stuff a from what I can find out 
a countermeasures radio receiver and scoop.It was made by Frank G.Mason 
Engeneering and has all the freq modules and power supplies ect it is a 
model A-2.Anybody know anything about this.I dont think this outfit is still 
in business or if they are under a different name any help would be nice.
I also got a lot of ARC 5 stuff and a GRC 9 complete and a RBH-2 another 
receiver looks somewhat like the RBH-2 but it is different and it dosent 
have a case.Lots more other things but have been thru them yet
Email me off list please