The lock cylinder is #84, #83 is the lock’s receiver body & #82 is a trim ring. I don’t have a picture unfortunately, but I remember helping Pat from Custom soda works when he was restoring one for a customer a few years back... try contacting him via Facebook or at customsodaworks.com. He watches our Facebook group Classic soda machines also.
I took another look...I am missing the trim ring as well!
I'll check with Pat.