Provenance
Franz Hilker, Bonn (not in Lugt). (Jörg Maass Kunsthandel, Berlin); Ruth Kainen, Washington, D.C., purchased 2006; Gift to NGA, 2012.
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Associated Records
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- Zeit-Taster
- 2012.92.637.1
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- Text Page (Johannes Molzahn)
- 2012.92.637.3
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- Summary of the Mechanics and Strength of Materials
- 2012.92.637.4
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- Industrial Monuments
- 2012.92.637.5
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- Atomizer, the New Power Station
- 2012.92.637.6
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- Constructing Milky Ways - Elevators
- 2012.92.637.7
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- High-Altitude Locomotives
- 2012.92.637.8
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- James Watt, the Inventor of the Steam Engine
- 2012.92.637.9