Antique/Vintage Western Electric 202 D1
Rotary Dial Desk Telephone 

With E1 Hand Set.

This phone is in really nice condition and it works without a subset box.
Just plug it in to a standard jack and use it. 
The audio is a little "tinny" but very understandable

The paint is original. 

It has a built in audio circuit, and an internal buzzer
for incoming calls. Self contained and working

If your telephone line does not accept rotary,
then you will need a rotary to tone adapter. 

Here is a link to an adapter from another seller: 
https://www.ebay.com/itm/114969969332

(you may need to copy/paste)

Note: This is a D1 mount.. The wiring is modified 202 circuit.