Thought you might find this interesting.
source - Dr M F Khan - Twitter: “It allowed researchers to work efficiently with up to 8 open books at the same time.”
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Very cool!
20……………….
My grandmother had something similar, but it instead was a stand alone tower, with a turntable on top, with multiple book stands. Below there were bookshelves. I wonder what happened to it?
I do not know for sure, but from the picture it seems that the trays are all connected just with a hinge to the Wheel, so maybe it is a kind of a counterweight, to hold the tray in a useful position?
Here is a Wikipedia about those Bookwheels in general
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By the way, Thomas Jefferson’s book stand is very popular with woodworkers and antique enthusiasts…
https://www.monticello.org/site/research-and-collections/revolving-stand
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That’s what my grandmother had, except instead of a central post, it had cabinets/shelving.
Thanks!