Sakura Seiki Petal (complete set) I B Spy camera

Sakura Seiki Petal camera
This camera, considered by the Guinness Book of Records as the world's smallest camera, weighs only 90 grams, has a diameter of 2.7 cm, and a depth of 1.5 cm. It can take six round photos on film cropped to a diameter of 2.5 cm. The camera is equipped with a 12mm fixed-focus lens and an f/5.6 aperture, and features a small external viewfinder. The shutter offers an instant mode with a shutter speed of 1/50 second and a Bulb setting, without film transport or mechanisms to prevent double exposure.

The displayed model is engraved on the back with 'MIOJ', which stands for 'Made in Occupied Japan'. During the period from the end of the war until 1951, the US mandated this marking on all exported Japanese products instead of the traditional 'Made in Japan'.

Changing the viewing angle is done by turning an external rotary knob, which also indicates the current frame number and functions as a frame counter.

The documentation, delivered in a wooden box, is unique because it fits on a single page, printed on rice paper.