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Ca.1890-1900. First Danish slide projector by Kongsbak & Cohn, Copenhagen (Nygade 2). |
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This type of Torpedo magic lantern is in most cases provided with a small brand plaque from the Haarlem company in photo articles Zwartser. In addition, they always have a trade mark with the intertwined initials M, D and W on the body. It is not clear where these letters stand for. Is Zwartser the manufacturer and is the lantern in consequence made in Holland, or is this company only the importer? | |
Engraved on lens, lamp housing and base: J.J. Zaalberg van Elst Amsterdam. |
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This sturdy magic lantern was made or more likely imported and resold by the Amsterdam company J.J. Zaalberg van Zelst. Objective: achromatic in brass tube, front lens diameter 4 cm. Condenser: double plan convex. Height: 38 cm, length: 48 cm, width: 19 cm. Slide frame holder for 10 cm slides. |
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