AN-PRC 25/77 Manpack Radio set

Cool, Cold War era manpack comms as used by the U.S. military and many others. A staple of the Vietnam war, these radio sets were robust and reasonably reliable field comms. This one is complete with harness, battery cover and the handset and headset as well as accessory bag with tall antenna. Whip antenna is attached as pictured. Years ago, I fired this one up off an OG rechargeable battery, so I know it powers up, but I have no idea about sending receiving as I never tried. 

$600 + shipping
I'm open to reasonable offers too.