Here's a nice set, a real Western Electric set wired to a nice double gong ringer subset. Here are the details: Mouthpiece is original bakelite, starred. Transmitter marked 337. Perch stamped 51AL. Dial is #2 AA marked on the external fingerstop; porcelain is an original 132A. Fingerwheel is brass. Wired to work! This is a nice working collector's item. Item pictured is the actual one that ships.