I'm trying to figure out when the first cat tree was made and sold on a large scale. I've found a patent from 1968, but not anything else. Do any of you remember seeing a cat tree for the first time or know if cat trees were "a thing" in the '60's or earlier? I'm also curious about whether cat tree design has evolved much since they were first created.
US3479990A - Cat tree - Google Patents
US3479990A - Cat tree - Google Patents