Lens:

f6.3, 5 ¼" Aldis-Butcher Anastigmat, iris diaphragm f22. Serial no. 143585 .

Shutter:

Betax No 1, five-blade leaf shutter by Wollensak. Speeds 1/2 - 1/100, B, T. Serial no. 2615.

Construction:

Leather covered mahogany body, exposed wood is painted black, blued or nickel plated metal parts, leather bellows.

Format:

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

Focusing:

Bellows to 22". Double extension with additional extension by using the front panel struts.

Attributes:

Brilliant view-finder. Spirit level. Infinity catch. Revolving back. Wide-angle flap. Drop-bed.

Identification:

Type 2 front standard lock. Type 4 infinity catch. Tongue and groove lens panel. Rack and pinion rising front. Late type front standard bolts. Type 1 handle to wide-angle rack. Revolving back. Type 6 name plaque. No patent details on struts. Type 4 wide-angle flap catch.

Movements:

Rising front, tilting front.

Serial Number:

26162 .

Notes:

Retailer's address on filter: Redferns Opticians, Sheffield. Instruction book has Ensign Ltd name dating from 1930.

With:

• Hooded focusing screen. 3 block-form double dark-slides (1 - 6) with 2 cut film holders by Ensign.
• Ensign cable release. Instruction book. Primus graduated sky filter in holder and blue filter. In box with Ensign Ltd name.