Lens:

f7.7, 9", Beck Double Anastigmat, iris diaphragm to f64.

Shutter:

B&L Unicum shutter, speeded 1 - 1/100, B, T.

Construction:

Polished teak with brass fittings, black leather bellows.

Format:

6 ½" x 4 ¾" plates held in double dark-slides.

Focusing:

Bellows to 5'. Double extension with additional extension by using the front panel struts.

Attributes:

Brilliant view-finder. Circular spirit level. Reversing back. Wide-angle flap.

Identification:

Type 4 front standard lock. Type 3 infinity catch. Friction rising front. Early type front standard bolts. Tongue and groove lens panel. Type 1 back catch. "Patents" (slanted script). Type 7 name plaque.

Movements:

Rising front Tilting front.

Serial Number:

15799 .

With:

• Hooded focusing screen.; 4 book-form double dark-slides (5 - 12).; Ensign cut-film holder.
• Ensign Isochromatic screen, No 2B.; Focusing cloth.; Bulb release.; Tripod with Thornton-Pickard patent top.