The Princess telephone was introduced by the Bell System in 1959. It was a compact telephone designed for convenient use in the bedroom, and contained a light-up dial for use as a night-light. ... Contemporary advertising demonstrates that this telephone was marketed to women, hence its variety of pastel colors and feminine model name.
Vintage Miniature Princess Telephone Keychains were distributed as advertising for the new phones. They also made great phones for Barbies!
The bottom of the phone is stamped with the slogan "The princess phone, it's little, it's lovely, it lights".