[GreenKeys] Navy FSK converter remote display scope - need ID

[Nick England]

Howdy gang - I just acquired a Navy tube-era 2-channel remote display
scope. The ID tag is missing but it looks like it was made by Hoffman,
probably to use with the AN/URA-8A (that's what I'm gonna hook it up
to anyways). It is designed to mount up high with a swivel base so
it'll look down at you.
Front panel photo here-
http://www.navy-radio.com/rtty/conv/ratt-display-04.JPG
and several more views at the bottom of this page-
http://www.navy-radio.com/rtty-demod.htm

Does anyone know the model number or have more info?
thanks,
Nick K4NYW
www.navy-radio.com