C. E. Hopkins
Harvey's
Rotary Shutter
The Pneumo
Shutter
The Compactum Shutter
The Marvel Shutter
c.1892
Photographic Materials, Illustrated, John Wanamaker (Philadelphia,
Pa), undated c.1890, p. 18
-1000.jpg)
No. 3 (3" diameter)
No. 4 (4" diameter), stamped "PNEUMO"
Notes: This
shutter, formerly described as unknown on this page, has been identified
as a Hopkins Shutter, which was patented by L. Prosch in 1891, and
subsequently marketed by C. E. Hopkins as The Pneumo Shutter.
It is also marketed as The Compactum Shutter. The two examples above have their pneumatic tube (to which to attach the
bulb and hose) on the different and opposite sides of the shutter.
The upper example matches the layout of the patent drawing below.
References:
Photographic Materials, Illustrated, John Wanamaker (Philadelphia,
Pa), undated c.1890, p. 18 (as The Compactum Shutter)
Illustrated Catalogue of Photographic
Apparatus, Rochester Optical
Co., (Rochester, NY), dated May 1891, ~6"x9", p.23
Illustrated Catalogue of Photographic Apparatus, Rochester
Optical Co., (Rochester, NY), dated 1892, ~6"x9", p.26
Catalogue of Photographic Apparatus,
Rochester Optical Co., (Rochester, NY), dated May 1893, ~6"x9", p.33
Catalogue "G" 1898 Photographic Apparatus and Materials,
Montgomery Ward & Co. (Chicago, IL), p.33 (as The Marvel Shutter)
