50mm (2") Polarex? How old is it? - Classic Telescopes - Cloudy Nights
Astronomical Telescope Vintage.photos and old.ads prints catalogs off Polarex and Unitron - YouTube | AstronomyConnect
Company Seven | Unitron Model 142 - 3 inch (75mm) Achromatic Telescope & History
Polarex Model 132-E – Unitron History Project
Pin van Live Polarex Telescope op Live Polarex
I found the Holy-Grail Part of the Telescopes Polarex Unitron - YouTube
My current Polarex (Unitron) 102 mm Refractor ( Andre van Zegveld ) - AstroBin
Unitron - Polarex 75 mm telescoop + accessoires in France
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
My Polarex (Unitron) 4" f/15 Equatorial - Members Equipment Gallery - Stargazers Lounge
Jan V
Company Seven | Unitron Model 132 - 4 inch (102mm) Achromatic Refractor Telescope & History