Sometimes "dumb" actually means "terrifying."
Baby Cage, 1937
A nanny supervising a baby suspended in a wire cage attached to the outside of a high tenement block window. The cages were distributed to members of the Chelsea Baby Club in London who have no gardens, or qualms about putting a child in a box dangling over a busy street.
Photo: Reg Speller/Getty Images
Jun 23, 1937
30 Dumb Inventions - Photo Gallery, 30 Pictures - LIFE
(via our ol' chum, Tim)