I mistakenly thought this was another Ricoh Auto Half roll but it was the test roll out of the 1960's Fujica Mini 1/2 frame. To my knowledge, this is the smallest 1/2 frame camera ever made, it's even smaller than the mini Diana. It was intended to be a lady's purse camera and is just so darned cute! Designed by the same guy who invented the FujiPet. Pricey little things on the aftermarket and not very common.