Eastman-Walker Roll Film Holder
1885
First model
Eastman Dry Plate & Film Co.
Rochester
USA
Film advance indicated by click.
Format:
10" x 8" exposures on Eastman stripping film.Serial Number:
194 .This 
is the first model of the Eastman-Walker roll holder patented by William H. Walker and George Eastman. To access the mechanism, the film-advance key is unscrewed and four clips holding the rear panel to the sides are lifted. The rear panel, on which the mechanism is mounted, then lifts off. The film is advanced by turning the key on the side of the box which connects to the take-up spool. The film passes over a measuring roller which operates a click mechanism and punches the film top and bottom. The measuring roller is of small diameter and makes several revolutions for the film to advance, thus the operator has to count the number of clicks (four on the whole-plate size). The patent mentions a cutting knife.
References & Notes:
US Pat. 317050 May 5 1885.http://piercevaubel.com/cam/acc/acceastmanwalkervar1.htm [Accessed 2024].
Cartridge Film Roll-holder
1898
Eastman Kodak Co.
Rochester
USA
Film advance indicated by red window.
Construction:
Leather covered wood.Format:
12, 4 ¼" x 3 ¼" exposures on 4 ¼" wide roll-film. Daylight loading spools with paper backing.With:
Spool marked 'Roll-holder only'.Cartridge Film Roll-holder
Film advance indicated by red window.
Construction:
Leather covered wood.Format:
12, 6 ½" x 4 ¾" exposures on 6 ½" wide roll-film. Daylight loading spools with paper backing.Serial Number:
103 .With:
Two spools. Instruction book (date of 1900 - 1902 from address).Produced in sizes of 3 ¼" x 4 ¼", 4 ¼" x 3 ¼", 4" x 5", 5" x 4", 6 ½" x 4 ¾", 7" x 5", 9 x 12 cm and 12 x 9 cm. The finish is either polished wood or leather covered. The film is wound outside the backing paper.