https://store.clarksonlab.com/R4600-10_1/2.aspx
R4600-10 1/2 Black Rubber Stoppers, Solid Size #10 1/2 United Scientific RST10A-S
R4600-10 1/2 Black Rubber Stoppers, Solid Size #10 1/2 R4600-10 1/2 United Scientific RST10A-S Fisher 14-130Q Vwr
https://data.spludlow.co.uk/mame/machine/indy_4610
Indy (R4600, 100MHz) - mame (0287) machine
indymamemachine