Heads-up to the group. There is a large collection of vintage Tek/HP CRTs and tubes on that auction site. Seller has inherited the collection and is seeking to have as much as possible go to good homes. I have no association other then being a happy purchaser of an HP3456A (among other items).
Store is "Test and Measurement Equipment" seller is "r793a26s7h" - he's a very nice and helpful guy.
I'm guessing there may be some things there that are otherwise unobtanium, so hope this is a good result for everyone.
Hope others can help to find good use for some of this.