AUTOMATIC
STEREO SHUTTER
Wollensak
Optical Company, Rochester, New York
1903-1909
Automatic
Stereo Shutter, manufactured by Wollensak Optical Company
for the Gundlach-Manhattan Optical Company, Rochester, New York.
Although this shutter can be encountered on any number of
stereo cameras from the early 1900's, it will typically be found on Gundlach-Manhattan's
stereo cameras from about 1903 to 1909, based upon the shutter's construction. Various
models of these cameras were produced under the "Korona Stereo",
"Stereo Koronas" and "Series VII Korona Stereo" names to
cite a few.
The shutter, a stereo Wollensak Automatic that was badged
"Gundlach- Manhattan Optical Co." was the top-of-the-line shutter
offered as an option with these cameras. The shutter required only one action
on the part of the operator to cock and fire it. The Automatic Stereo Shutter was
priced about 22% higher than Wollensak's Regular Shutter, which required the
operator to manually cock the shutter before releasing it. The Automatic Stereo
Shutter appears to have never been offered as a stand-alone item in the Gundlach-Manhattan
catalogues that I've had access to.
By 1903, although Gundlach-Manhattan continued to offer a
few of their own shutters, they were also offering Bausch & Lomb's Volute
along with the introduction of four shutters manufactured by Wollensak that
carried the Gundlach-Manhattan name.
While Wollensak's Stereo Regular is rather scarce, the
Automatic Stereo having been their premium and more costly shutter is almost
never seen today.