How to use an astronomical telescope by Muirden, $10 shipped CONUS.
The Dobsonian Telescope by Kriege and Berry, $18 shipped CONUS.
Build Your Own Telescope by Berry, $12 shipped CONUS.
How to Make a Telescope by Texereau, 2nd Ed, $20 shipped CONUS.
I'll happily make a deal for multiple purchases to reflect my reduced shipping and hassle costs. How about $50 for the lot? These books are in terrific shape, unmarked, etc.