Goto Mark X Portable Photographic Mount

The Goto Mark-X Portable Photographic Mount is a product that was offered by Goto Kogaku starting in about 1976. It is a subset of the entire Mark-X mount; just the RA portion and a camera mounting plate and maybe a slow-motion knob. This was intended to be used with the owner’s camera tripod and provide a means to track the stars for astrophotography.
For additional context and more details about the Mark-X mount see these videos:
Goto Mark-X 65mm: • Goto Mark X 65mm Class...
Goto Mark-X 125mm: • Goto Kogaku Mark X 125mm
Goto Mark-X 80mm Classic Telescope: • Goto Mark X 80mm Class...
Modular Telescope Mounts: • Modular Telescope Mounts
Goto Mark-X Modifications: • Goto Mark X Modifications