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well its all great stuff! the brass bits , no idea, there is a Unitron Super focuser, cant see any intended size so perhaps sold by Astro Optical in Sydney for their Newts (let me know if you wantt o part with that) the Alt Az is Unitron an early one, there is a variation of the Unihex (multi eyepiece) dont know which that is, there is a clock drive for a 100mm Unitron, the GEM you can measure the size of its intended OTA, Vixen OTA whats size is it?
Roger
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