Yesterday’s “What was the use” contest has a winner! @RogerHoward. Mr. Howard, email me your mailing address and I’ll send you a copy of Obsolete.
He guessed correctly: It is a bathroom scale. And it’s for sale! Check out Etsy’s Fishbone Deco shop.
Other noteworthy guesses posited that it was an early model T Roomba which could, in a pinch, scrape dead skin from your feet or double as a desk bell. That, or a mid-20th century vibrator.












