I am selling a 6" f7.2 pyrex mirror custom made for me by Jerry Wilkinson. It is signed and serialized on back. Jerry was a master optician at Galaxy optics for many years before leaving and starting his own optical business. This was an expensive mirror and the performance is refractor-like. Star images are pinpoints. Planets show a wealth of detail. Saturn’s crepe ring is readily visible. Cassini's division is razor sharp and fully visible. The E and F stars in the trapezium are obvious on steady nights. Epsilon Lyrae is exquisite - lots of black space between the stars and each star shows a little diffraction ring! This is a really fine mirror. Coatings are about 4 years old and still in good shape.
Asking $195.00 and buyer pays for shipping.
P.S. The picture shows several items, but this ad and price are just for the primary. The mirror cell is already sold and the spider/diagonal are in another ad.
Thanks for looking.