This mirror's performance is noteworthy for albedo markings noted on Jupiter's moons Ganymede and Callisto! At the Peach State Stargaze in Sharon, GA, under excellent skies, we were viewing with this mirror in my telescope alongside a telescope with a Zambuto 12.5" mirror. The albedo markings were noted using both telescopes and findings were confirmed by Sue French, Alan French and Dr. Bob Schilling. Mirror coating in very good condition. Mirror is 1.5" thick: $1900.
I also have for sale a Starsplitter 18 point mirror cell with a Howie Glatter sliding cable mirror sling. This cell supported the mirror during the mirror performance noted above: $210.
Also for sale is a 3.1" secondary mirror used by Dick Wessling and John Pratte in a JP Astrocraft Sweet 16 telescope. I do not know the mirror maker: $100.
Thanks for looking,