TELESCOPE MIRROR 6" WITH SECONDARY MIRROR - USED For Sale
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TELESCOPE MIRROR 6" WITH SECONDARY MIRROR - USED:
Telescope mirror 6" with secondary mirror and metal base. No brand listed. One chip on secondary mirror edge. Minor scratches and wear on both mirrors. Back of main mirror says "Pyrex Made in the U.S.A." Pre-owned and could have been hand made at the Adler Planetarium in Chicago in the 1970's.