help identifying a light fixture  

Has Restoration Hardware written all over it. That's where I'd start anyway...

I think you're right, and it's a Pierce sconce. Thanks a bunch!

Ha! You're welcome!
To be perfectly honest, I'd recently flipped through their print catalog in my urologist's waiting room and your pic triggered a somehow unpleasant flashback.
Design quality aside, I've never had a chance to closely inspect RH's offerings with regard to materials or fit and finish, but I'd certainly expect them to be above average considering the prices.