I suggest/recommend to many working in a professional capacity within the "Historic Restoration" and related artisan/professional trades to join the different "groups" that are available to professionals in their field within LinkedIn. Some are "open" while others are "closed" and request a "submission" for entry. These groups have among their memberships a global network of museums, historical societies, NGO, governmental and related organization like UNESCO that share information on all manner of related topic. Some of it "timber framing" and the topic of "vintage tool markings" has come up over the past few years as it pertains to kerfing, planning, hewing and related tool marks.
I think much of what you share would be of interest there as well.