A loyal reader — Howdy, Cate! — decided to swing by the American Computer Museum in Bozeman, Montana, when she realized that a replica of the Antikythera Mechanism was there.
Evidently it’s a “nightmare” to photograph — “stuck in a corner with poor lighting” — but this photo looks pretty good to me. Note that they put plastic in place of the original bronze plates to make the internal mechanisms visible to non-Kryptonians.