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- Date:
- Circa 1900
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- April 04, 2024
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- comprises a petrol Motor coupled up by a belt with a continuous current Dynamo. The tension of the leather
- Date:
- Circa 1900
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- April 04, 2024
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- cursor adjustable by hand (Fig. 125) or with cursor, adjustable by handle (Fig. 125 71 ), mounted on oak
- Date:
- Circa 1900
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- April 04, 2024
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- dia- meter mounted on a moveable frame with handlc for easy cleaning or im- médiate changing. By means
- Date:
- Circa 1900
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- April 04, 2024
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- Stéréoscope released by Coins (Fig. 197) New apparatus set in action by a clockwork movement ; will run by
- Date:
- Circa 1900
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- April 04, 2024
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- , runs by clockwork and can be regulated in speed as desired. . . £ 12. - Animated butterfly. — Effect
- Date:
- Circa 1900
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- Date Added:
- April 04, 2024
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- meniscus lens C in brass mount. The meniscus lens facing thc illumi- nant is protected by a glass sheet V
- Date:
- Circa 1900
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- Date Added:
- April 04, 2024
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- time and hence has bcen adop- ted by several Theâters. The effects | of the projection are bv no means
- Date:
- Circa 1900
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- April 04, 2024
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- » Prism Binocular (Fig. 203) differs from other constructions by ils reduced volume which renders it very
- Date:
- Circa 1900
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- April 04, 2024
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- this second plate is hinged a large mirror which is held in a horizontal position by a hook fixed to
- Date:
- Circa 1900
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- April 04, 2024
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- projection of transparent and opaque objects. This cône is firmly held to the lantern front by thegroo- ves
