12.5″ Orion Deep Space Explorer Dobsonian | Scott's Astronomy Page
Hyperion 12.5" f/8 Astrograph — Starizona
12.5 inch Telescope Mirror Blank
Amazon.com : CelticBird 1.25'' Telescope Eyepiece Kit with 5 Plossl Eyepieces 4mm/8mm/12.5mm/25mm/32mm Fully Multicoated Optical Lens Metal Construction Fit for 1.25inch Astronomic Telescope and Astronomy Filters : Electronics
Dan Duriscoe's binocular telescope - 2 × 12.5 inch primary mirrors - 74 inch focal length... He forged the support structure from discarded aluminum signs. The differential gear carrier from a '69
RCOS: 12.5 inch Carbon Truss Telescope
25 inch F2.6 Telescope
Review/Overview of the 12.5" Obsession Telescope! - YouTube