artly the invention of Mr. Millison, and has been installed in the Point Loma station only a plate. No matter what the speed may be, whether a solutely uniform in ratio to the increased spring ten- few months. Some time ago the Point Loma operator sion. For bulb or time exposures, which are set by… … A NEW HIGH-SPEED PHOTOGRAPHIC SHUTTER.
Internet Archive · Public domain (published before 1931). Free to use for anything.
