Shutter:

Thornton-Pickard Unit focal-plane, speeds 1/10 - 1/1000, T. Tension range 1 - 5. Slit width range A - E.

Construction:

Polished teak with brass binding and fittings, black leather bellows.

Format:

3 ¼" x 4 ¼" plates held in dark-slides.

Focusing:

Bellows. Double extension.

Attributes:

Spirit level. Revolving back. Wide-angle rack.

With:

2 double dark-slides.