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3 revisions | Wjhoward at Mar 17, 2017 07:37 PM | |
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107 How regulated; describe. How the flashes are produced: By the whole apparatus revolving; by the central belts only revolving; by vertical elements-panels off vertical revolving outside of fixed lens, and, if so, the number of such panels, or how? If Colored Light. | 107 How regulated; describe. How the flashes are produced: By the whole apparatus revolving; by the central belts only revolving; by vertical elements-panels off vertical revolving outside of fixed lens, and, if so, the number of such panels, or how? If Colored Light. |