There are always threads showing cards starting in 1900, but not much prior to that. After searching for a Baldwin Chicago card or cabinet on eBay I came across an
1890 Studio Cabinet. A little out of my price range, but it has caught my attention to these pieces.
I know there are some great collections out there with these types of photos. Let's see a few.
I'll start with my N173 of Al Buckenberger.
PS. If the owner of the Baldwin is a Net54 member I'd like to talk.