Ericofon by Ericsson

In the late 1940s, Ericsson put together a design team, headed up by H G (Gosta) Thames, to come up with a new design for the telephone. The main purpose was to make the phone small, lightweight, and easy to use. After several prototypes, a design was settled upon and that one that went into production for the next 2 decades.

More info HERE via ericofon.com

I want one of this in my future house!