[Test-Equipment] Looking for a GR gray (last generation) knob for ... long shot

[Pete Lancashire]

Well one of my latest (useless but fun to restore) test equipment boat
anchors arrived with a broken knob & skirt.

It is a GR/General Radio 1163A Synthesizer.

http://petelancashire.com/gallery/main.php?g2_itemId=21100

Must of been quite the hit.

In all the stuff I have, I don't have any parts hulk last generation GR.

Anyone have a even a knob even w/o the skirt ? Until I can get the
original, I can make the skirt.

Trade ? Sell ? .. or ...

-pete