I really needed some help. I can't for the life of me find any information pertaining to this hardware manufactured by the DIT-MCO Electronics Division. The most information I can glean is that It's a Type 45 switch and was made in Northlake Illinois and that it's attached to a rotary dial. Any information or applications for these pieces of hardware would be greatly appreciated! One more bonus, my grandfather also gave me a Nixie Tube display and I have yet to test it out. I'm not sure any specifications or what equipment to use with it to make sure I don't blow it up (figuratively); any information on the tubes would also be appreciated. Thanks!
It's a stepping switch. I refer you to the complete engineering information that an engineer would have used in 1964- "How to use Rotary Stepping Switches" from Automatic Electric.
It's an 63MB 81-page book, scanned and linked above in it's entirety. If it disappears, look for the file named "10539-how-to-use-rotary-stepping-switches-automatic-electric-1964-ocr-r.pdf"