Keystone B-1

The Keystone B-1 is a 35mm camera introduced by Keystone in 1936, representing the company's entry into the emerging 35mm photography market. As a relatively early 35mm camera from an American manufacturer primarily known for simpler box cameras, the B-1 was likely positioned as an affordable option for consumers wanting to experiment with the smaller format that was gaining popularity in the 1930s. Its basic design would have been functional rather than innovative, offering the convenience of 35mm film in a straightforward package that would appeal to amateur photographers of the era.