The Meikai EL was introduced in 1963, by Togodo, a minor Japanese camera manufacturer.
A simple and cheap viewfinder camera with a 50mm lens targeted at a young audience and sold in toy and stationary stores. The aperture is controlled via a three-step ring (for bright light, medium light, poor light indicated by icons). These days a few toy-camera users have adopted this model.
image by Martin Taylor (Image rights)