Lens:

Lancaster landscape.

Shutter:

Lancaster Patent. Rotary sector.

Construction:

Polished Honduran mahogany, dovetail joints.

Format:

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

Focusing:

Bellows. Double extension. Worm screw acting on inner frame.

Attributes:

Two positions for the dark-slide (landscape, portrait) which is retained by eccentric circular plates.

Identification:

Enamel plaques.

Movements:

Rising front. Cross front. Tilting back, swing back.

Notes:

The bellows on this example are not original.