The 296 is an uncommon WE wood wall phone. It is basically a 297 with a transmitter and receiver attached.
http://www.ebay.com/itm/191152224247 (http://www.ebay.com/itm/191152224247)
The wiring looks a little fishy on the door, as if it was rewired for a later transmitter. I would expect to see straps, not wires. The condenser and the key escutcheon are also later. Otherwise it looks fairly intact for a phone you don't see very often.