Here's one of their phone book ads from 1959. I love it, especially the pipe-smoking husband eyeballing the ship-shape girl advertising mascot.
It's interesting what services they offered back then: steam room, body building, massages. I wonder if the steam room was the type you always see in cartoons where the person's head sticks out of a big box while their body shrinks to toothpick size?
I guess we'll never know!