Lens:

f6.3, B&L Tessar IIb, iris diaphragm to f45.

Shutter:

Optimo No. 1, speeds 1 - 1/300, T, B.

Construction:

Fine-grain leather covered wood body, black leather bellows.

Format:

12, 3 ¼" x 4 ¼" exposures on 118 roll-film.

Focusing:

Bellows to 6 feet.

Attributes:

Brilliant viewfinder. Spirit level.
Film advance indicated by red window, not coupled to shutter.

Identification:

Patents to 1918.

Movements:

Rising front, cross front.

Serial Number:

13290 .

With:

Case.