16.2" Dia. x 2.75" Telescope Optical Blank Mirror Glass Pyrex Borosilicate. For Sale
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16.2" Dia. x 2.75" Telescope Optical Blank Mirror Glass Pyrex Borosilicate.:
Vintage 16.2" x @ 2.75" Telescope Pyrex Borosilicate Optical Glass Mirror BlankGround and polished to f 5.2 Shere (.0067), f.l. 84.2 inches.Beautiful piece of old glass, late 1950's.Please eMail any questions or concerns. For an additional charge, there is the option to have the mirror blank cut to a thinner profile.Clear Skies!