[Milsurplus] US Navy ??

[Jim Isbell]

I have a pair of 19" rack mount 50 mhz to 260mhz AM/FM receivers that I 
am trying to identify.  They have very low serial numbers so I suspect 
there were not very many made.  Judging by the color I suspect they are 
USN.  I have some pictures of them if there is anybody out there that 
would like to try to help me identify their purpose, age, service...etc.

I am probably going to sell them or trade them for some Collins 
equipment but dont want to do that until I know what they are!

Thanks.