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| Date: | 03 02 1934 |
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| Description: | A man exposing a negative onto a zinc plate, in preparation for making a zinc etching at Wisconsin Engraving Co., 109 S. Carroll Street. |
| Date: | 03 02 1934 |
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| Description: | A man in the camera room at the Wisconsin Engraving Company plant, 109 S. Carroll Street, is coating the wet plate negative with rubber and collodion to ma... |
| Date: | 05 21 1957 |
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| Description: | Rolland H. Fellers, superintendent of the engraving department, checks over the new Robertson half-tone color camera at Madison Newspapers new photoengravi... |
| Date: | 08 02 1879 |
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| Description: | A drawing of Thomas Edison seated at a desk working on an experiment. Caption at bottom reads: "Edison In His Workshop." |
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