The Hallow is a Japanese subminiature camera, only known from a single example pictured in Pritchard's book.
The Hallow certainly takes 14×14mm pictures on 17.5mm paper backed rollfilm, as most other simple subminiature cameras made in Japan at the time, but this is unconfirmed.
The camera has the shape of a matchbox, with a shiny metal finish all around. There is a folding finder at the top, consisting of a single glass element with no bead or eyepiece. The film is advanced by a knob at the bottom right, as seen by the photographer. The camera fundamentally has a horizontal design, but it cannot lie flat on a table because of the advance knob. (In Pritchard's book, it is shown standing upright on its left side.)
The lens has a fixed focus and aperture, and has no marking. The everset shutter is tripped by a small lever protruding on the camera's right. Another small lever is visible at the top, on the viewfinder's left, switching between Bulb and Instant exposures.
The name HALLOW is engraved on the front plate at the top left, and there is a logo at the bottom right, consisting of the letter M inside a circle. The back is reportedly engraved "Made in Occupied Japan".
The Hallow was made in the late 1940s or early 1950s, as indicated by the "Made in Occupied Japan" inscription. Its manufacturer is currently unidentified, and the meaning of the M logo is unknown. The Hallow has some similarity with the Pet, another Japanese subminiature of which it might be a predecessor.
- Pritchard, Michael and St. Denny, Douglas. Spy Cameras — A century of detective and subminiature cameras. London: Classic Collection Publications, 1993. ISBN 1-874485-00-3. P.72.