It has been a while since I posted on this list, but I have been lurking again for a few weeks. There is certainly a bunch of traffic here. Anyway, the reason for this post is that I have some things for sale. I hope this doesn't violate the list rules, but if it does, I'll take the heat. Since I have never been in trouble in the past, it will be a new experience. Here is what I have: 2 ea. 5" f4.5 cemented doublet lenses. Some slight adhesive patterns, but the images look to be good. No cells. These would be a great start for a set of large binoculars - suitable for comet hunting. A 12 mm eyepiece would give 48 X with an exit pupil of 2.6 mm. FOV would be 1.75 degrees with an 80 degree eyepiece. Surplus Shed has a similar lens for $125. I'll sell both for $200 OBO. 1 ea. 13.1" f6 mirror, made and figured by John Dobson. He has signed the mirror. I will include the start of an ultra portable telescope. The scope has been designed to go under the seat of an airliner. Most major parts including the secondary are present and accounted for, and I'll tell you how to finish the scope. To eliminate questions, this mirror was made years ago when John visited Salt Lake, and a number of folks helped with the grinding. John did some grinding as well, and he did all of the figuring. I then had him sign the mirror using a diamond stylus. I chipped in an extra amount to retain the mirror myself. I am not familiar with the market these days, but $500 seems like a good starting place. If not, let me know and we can bargain. A box "plus" of mirror grinding supplies including abrasives, Cerium Oxide, a couple of 8" pyrex tools, etc. Make me an offer. I am contemplating selling my 10" f10 planetary reflector with a BK7 optical window and 7/8" secondary, Astro Sital primary. Optical components made by Vaughn Parsons. I designed and built the OTA. It has a cork lined aluminum tube, an aluminum mirror cell with fan, and an aluminum window cell. The finder is an 80 mm. RA finder. This is a great scope for observing the Moon and planets. Comments on its quality include "Mars looks like the cover of S&T." It is a 10" scope, so it does well on the deep sky stuff also. Star images are small pinpoints. It produces refractor-like images. Any interest? Brent