[Andrew Dumbleton]

I think I have a commercial version of such a planisphere. Written on it is the title ‘PRECESSION OF THE EQUINOXES, HISTORICAL PLANISPHERE (C) 1977 by Milton D. Heifetz, 30deg N Latitude. No idea where i picked it up, but if going to Winchester in a few weekends time, I could bring it with me if interested in its construction/operation? Or the attached image may suffice if the upload works. A little googling revealed this science shop item: https://shop.sciencefirst.com/astronomy-planetariums/3521-precession-of-the-equinoxes-classical.html 

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