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I have all three of the Albert Ingalls Amateur Telescope Making (hard cover, well used), Texereau's How to make a Telescope (hard cover, no jacket but good condition), Howard's Standard Handbook for Telescope Making (hard cover, jacketed and good condition) and both volumes of Mackintosh's Advanced Telescope Making Techniques (paperback, reasonable condition). I've no idea what they are worth but I'm open to offers + postage.
Charles
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