| Hi David, Thank you! I have taken several breaths in your honour. Sorry can't help with your extra-ordinary book. Love to you & yours & good luck with all projects. Cheers daevid |
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A Book Wheel
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The Bookwheel, invented in 1588 by Italian engineer Agostino Ramelli, was a
heavy, 600-pound wooden rotating bookcase that let scholars easily use up
to ei...
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