Thanks
Hi,
Thank you all for the replies. I live in a very rural area, so there are not a lot of plumbing supply stores, but I did take it to the ones I know of. Nobody recognized it. It was probably put in about 1978 when the house was built, although of course it's possible that it was upgraded since then.
There's no consistency throughout the house in terms of what brand of fixtures were used so I can't go by that. I've sent it in to a few online supply stores without luck.
Thanks again for trying. Maybe someone will come up with something. If I get an answer, I'll post it.
Dan