Unitron Polarex Telescopes | Polarex Unitron 4inch Refractor 4inch ATO with very rare 75mm guide scope and Astro Physics rings, on an amazing equatorial mount and wooden tripod, ... | Facebook
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polarex - News - Actualités - Les Observatoires du Clain
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Unitron History Project – Preserving the history of Unitron/Polarex telescopes