1921 Western Electric 51AL candlestick phone has a #4 dial.The #4 dial has the more raspier Clickety Clack 

The transmitter is nickel plated  marked and has a 337 Tag. Nice original mouthpiece and receiver.  

 The transmitter face plate looks like it has been  newly  nickel plated

This phone would need a Ringer subset box and subset cord in order to work.