Dr. Scott, I am thinking about your offer. Among the other concerns that I have, the number one concern is my very thin knowledge (thinner than surface rust on a vise

) of vises and their history.
I am also trying to figure out was I to undertake this, how do I go about efficiently seeking help from experienced and knowledgeable members including those that have access to old catalogs, history etc.
The other thing that came to mind is even for vises with definitive date stamps (which I would not know as I have no such vises) what date does one assign to the vise, as obviously the vise most likely got produced over some years. Say a Wilton 400s in the Wilton thread might have been referenced having whole bunch of different dates. Furthermore how to sift through that thread to even get to find all these dates to compile a date range for a single Wilton model, let alone for many models.
I think this idea might still be premature and still need further thinking and planning.