I just found the Hagley Museum website. There was a short notice in the current Shaving Newsletter published by the EAIA giving information about their patent model collection. 68 pages of patent models available to look at online. A few wrenches and pipe tongs and the whole gambit of different patent models.

https://museumcollection.hagley.org/explore-the-collection

Click on the "Innovations" tab and enjoy.

Les,
Thanks so much for the link.  I suspect I'll be adding "patent model can be found at" to some DATAMP entries & maybe adding some entries to DATAMP based on the existence of patent models in that collection.