~1930 Kodak No. 2A Folding Cartridge Hawk-Eye Model B

Manufactured between 1926-1934, serial number 428411 probably dates this Model B to around 1930. It has a simple achromatic meniscus lens with a maximum aperture of f/6.3 and a Kodex shutter with four speeds: time, bulb, 1/25, and 1/50.