Here we have a very nice playing Bach 36BO. Open-wrap version of the 36 from the mid-1980s. .525-bore, yellow brass, excellent slide, nice blowing valve. Some lacquer wear, not a super beauty queen, but a nice looking horn that is straight and shows no signs of damage or abuse. This was my daily player when I was in my "36 phase"... The slide was well-aligned and moved well but had a little scratchy spot that I ignored. Well, last week my tech buffed out the outers and tweaked the alignment a bit... and now it is beautiful! This is a great do-everything horn. Comes in a zippered brown Bach case. Ugh. $900 + shipping.

Photos:

https://photos.app.goo.gl/tPRDAPpWxn8EsFX57