Origin of Cave 3" Refractor (ca F/11) circa 1970s

Anyone in the forum familiar with the refractors that Cave sold as guide scopes in the 1970s? For example, are they Vixens ot some other recognized brand? I am sure it is Japanese. I kept mine along with a couple of Cave Orthos when I sold my Cave Cass many years ago . It is a great scope inspite of some minor damage to the tube when some construction workers managed to pull it over.

Thanks for any information you can provide, Ed

My 1973 Cave catalog price list shows the Meade and Mayflower 3" F16 complete equatorial scopes available as "beginner" instruments. It is possible the guidescopes were from the same sources.