Hello all. I've been looking around the fourms here, but can't seem to find what I'm looking for. My shower head leaks, so I'm in the process of taking the faucet apart. After a few hours of work I got the handles off and took the Escutcheon off. To my finding I've found an odd nut and/or threaded mount. I'm not sure how or what to use to take the unit apart, so I can replace the washers. I've never seen anything like this before; so I'm thinking it's really old or done with non-shower parts (That's just a wild guess!). Any information on how, what, etc. will be wonderful. I've uploaded two pictures (not very good, sorry) that should help. Thanks in advance!
