Help identifying scope mount.

Hey all

Trying to figure out the make and model of the mount my Dad had on his Celestron 8 inch reflector. I assume he purchased in the 80's as i remember this as a kiddo.If there's a brand label, I'm blind. Simple markings for Dec and RA in English and Japanese.

Also, he has a controller for the motors with an 8 AA battery pack. One slot (2 AA) bypassed with a piece of copper.

So, I want to find out A)who made this and B) what voltage it needs.

Appreciate any help!