lot of 2 vintage bakelite/brass mouthpieces for candlestick or oak wall telephones, Western Electric

Lot of two old telephone mouthpieces. These look to be for the old candlestick or oak wall telephones. One mouthpiece looks older and has a solid brass housing marked Western Electric". The other looks newer and has a steel housing and newer pigtails. Both phone mouthpieces have bakelite bodies. These measure about 3 1/4" across and about 3" deep. They are both marked inside with "635B".

One is missing one of the small screws that hold the metal housing to the bakelite body. We have not tested these and are selling them for or restoration or parts.