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At the Institute’s core is the Gilder Lehrman Collection, one of the great archives in American history. More than 85,000 items cover five hundred years of American history, from Columbus’s 1493 letter describing the New World through the end of the twentieth century.

Evans, Oliver, 1755-1819 to Samuel Pitkin

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Gilder Lehrman Collection #: GLC04265 Author/Creator: Evans, Oliver, 1755-1819 Place Written: Philadelphia, Pennsylvania Type: Autograph letter signed Date: 1811/11/23 Pagination: 2 p. : Height: 20.3 cm, Width: 25.1 cm Order a Copy

Hopes Congress will pass new laws that will help him to extend his steam engine patent. Argues that by protecting patents the government will be aiding the public good, and encouraging innovation.

Evans, Oliver, 1755-1819
Pitkin, Samuel, fl. 1811

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