[Hallicrafters] Navy SX-28 with panadaptor?

[rrkrr]

I found a WWII Navy version of the SX-28 at the Atlanta hamfest 
yesterday.  The front panel is black wrinkle finish and does not have 
the embossed texture and does not say "hallicrafters" or "Super 
Skyrider".  All the knobs and other engravings are in the usual places 
as are the dials and S meter.  A metal tag says "TYPE CHL-46195 RADIO 
RECEIVER" and "A UNIT OF MODEL RBY RADIO EQUIPMENT".

 From a single reference I could find on the web, the other unit of the 
RBY radio equipment was a panoramic frequency display made by Panoramic 
Radio Corp. Has anyone ever seen one of these?

The radio is pretty rusty, but everything is there.  I think it can all 
be salvaged, but I'm going to have to strip the chassis and have it 
sandblasted and re-plated, then completely reassemble with new fixed 
resistors and caps.

Bob K4ERR