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You searched for: Name Helfand, William H. Remove constraint Name: Helfand, William H. Form/Genre engravings (prints) Remove constraint Form/Genre: engravings (prints) Date 1897 Remove constraint Date: 1897
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1. The Hon. Robert Boyle. OB, 1691.
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Date:
1800s
Collection:
Edgar Fahs Smith Image Collection (University of Pennsylvania)
2. James Watt
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Date:
1800s
Collection:
Edgar Fahs Smith Image Collection (University of Pennsylvania)
3. James Watt
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Date:
1800s
Collection:
Edgar Fahs Smith Image Collection (University of Pennsylvania)
4. James Watt.
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Date:
1800s
Collection:
Edgar Fahs Smith Image Collection (University of Pennsylvania)