Date: | 1941 |
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Description: | A diagram of sun angles for the Chicago latitude shows angles on the 21st days of December, March, September and June. Study done for design of the Hugh D... |
Date: | |
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Description: | Illustration art of candling an egg. On a black background, the bright flame at the end of a tapered candle on the left illuminates a right hand holding up... |
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