This is what's left after the 3 installed drives. The large RA circles will go with the 8" mount. The aluminum plate was going to get 2 full size circles cut to back up the RA and DEC circles but the RA was never designed to work 100% correctly. The circle on the right has all the stuff for the brass clock gear attachment Robert showed pictures of. Both gear and a pointer rotate with the shaft - duh? The bore on this circle was already set for the special adapter and I had the right O ring so it's all installed. This circle has original print showing under the Edmund print, and was the face plate of an aircraft airspeed indicator. Likely an Edmund Govt. surplus purchase. It would be interesting to know what airplane.
The large Left RA circle is bored for the rubber grommet originally used on the DEC circle. This one would have to be bored out more to fit on the machined end of the RA housing. This set up has the pointer turn backwards against the fixed circle.
I'm not going to do all this for looks. I will likely remove the DEC circle as well for safe storage with the others in the 'original parts' box. No one uses these to the extent that it makes sense to leave them out. They are delicate and the good two are basically perfect. The DEC could be set, and the RA could be used for careful star hopping, but better safe than flashy. Do you use them? Finish them for a picture? I'll pass that on.