Mike Rossi on antiques for the collector
For the inveterate collectors out there, I remember Mike Rossi's old TV show and recently saw he was dispensing advice about antiques, buying/selling, and collecting on his relatively new Instagram account: https://www.instagram.com/antiquesalley/
Others might appreciate his perspective on buying and selling of the secondary market of vintage pieces and antiques. While he doesn't specifically touch on typewriters (that I'm aware of) a lot of his pragmatic advice is broadly applicable.
Here's an interesting one to start with: https://www.instagram.com/antiquesalley/reel/DJSXLwPhMjH/
posted to https://reddit.com/r/typewriters/comments/1khupsb/mike_rossi_on_antiques_for_the_collector/