I've got one here in my hands. Aluminum housing (potted construction),
solder terminals on the bottom, labeled 1,2,3,4 2.5"H x 2"D x 2.5" W
Only ID is the number 080-00785-03 on the side. Fairly hefty: 1.25 lbs,
DC resistance (both sides) 1.2 ohm.
Let me know, I'm doing some housecleaning. I haven't looked carefully;
I may have only 4 left. After sleeping on this, I recall that there
were a bunch of plug-in passive LC filter modules, then "stapled wiring"
PCB modules with mercury-wetted relays and a bunch of moto TO3 diodes
and transistors.
--Chuck