I believe Cave made such a telescope. But I have not seen a catalog with one in it. I aquired most of one recently. Unfortunately it is missing the cassegrain secondary. I do have hopes that the daughter of the owner will be able to locate it. I presume it is possible that the owner had purchased the parts needed to convert it between the two.
The mount has the ATROLA name cast in it. The tube has a Cave Astrola label on it. The mirror has no markings on it. There is a Pancro label. Has 1110-66 hand written on it. The mirror coating is poor. Unfortunately the newtonian secondary was very dirty. Rinsing did not remove much if any. I placed it in a dish with water and a small amount of diswashing soap. After a short while I checked and much of the dirt had come off. And much of the old coating with it!
After a lot of work, penetrating oil, vinegar and patience the mount has been mostly dismantled. Oh yes, and my neighbors 10 ton hydraulic press. To get the counterweight off the declination shaft. It was really rusted on! Still need to get the lower declination shaft roller bearing out so it can be properly cleand and the hole for mounting the declination setting circle pointer can be drilled out and retapped.
I am hoping to get the cassegrain secondary, and it is in good enough condition to try this scope on Mars. Even with the poor coating on the primary.
From the Pancro label I suspect the scope might date from 1966. Anyone have any other thoughts on possible age?