Type: Posts; User: drcollie
You would say that's an finished exterior wood.
I have no idea on how to tell you a search for that particular sofa, sorry. I'd start by asking the store you saw it in. Many of those kind of...
Without the wood on the back, and the odd tuck and roll on the arms:
http://www.hancockandmoore.com/Products/2883/Sofas/September-Sofa