I used to cringe, but nowadays I just cite "caveat emptor". Knowing what you are looking at, researching reference material, and listening to the knowledge on forums such as these, will keep one from regretful purchases. It does hurt to see something like this for sale, knowing its going to wind up on a T, only with no means to adjust windage/elevation!
I have a decent book collection (Skennerton, Stratton, Laidler
), and use them regularly when looking over a potential purchase.
Amazes me how many folks buy something, THEN conduct research, only to find they've been burned.
Repro scope mount, repro tin, and a decent No53 for parts to rebuild a needy No32. Waaaay overpriced....