Few new sets and a question

[bigaudioal]

Picked up a few new sets in the last few days. Kamakiri (Tim) is picking them up today and I will grab them in a few weeks from him.

1951 Admiral Tele-Bar complete with original glassware. The cabinet has already been refinished (photos before refinishing).

1947 DuMont 103 Doghouse. Need to track down knobs. Let me know if you have spares that you would part with.

Now for the question. The Admiral Tele-Bar chassis (21L1) seems to be missing a round metal plug on the back of it. See attached pictures from my other Admiral console (21K1) chassis. What is this part? Can find no part number or references to it in the literature anywhere. From being under my 21K1 chassis, it appears to be a fuse of some type. My guess is set will not even power up without this part. Any idea how I can get one?

Thx.