Our Collection

At the Institute’s core is the Gilder Lehrman Collection, one of the great archives in American history. More than 70,000 items cover five hundred years of American history, from Columbus’s 1493 letter describing the New World to soldiers’ letters from World War II and Vietnam. Explore primary sources, visit exhibitions in person or online, or bring your class on a field trip.

Unknown [scratch note]

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Gilder Lehrman Collection #: GLC09855.019.03 Author/Creator: Unknown Place Written: Lanham, Maryland Type: Note Date: 5 December 1939 Pagination: 1 p. ; 6.5 x 10.8 cm.

One note containing numbers and equations.

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