Date: | 09 20 1956 |
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Description: | Katharine Mather of the Corps of Engineers Waterways Experiment Station checks a computer analysis of the composition of cement. |
Date: | 03 26 1962 |
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Description: | A woman in the foreground on the right is speaking to a man and another woman; the top of an opened bottle of champagne is between the group. Caption reads... |
Date: | 06 12 1959 |
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Description: | A man is using a screwdriver on a machine part of a player piano. Caption reads: "Rebuilding old player pianos keeps Elmer K. Hunholz busy now that the foo... |
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