Our Collection

At the Institute’s core is the Gilder Lehrman Collection, one of the great archives in American history. More than 75,000 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 Proof of Powder, tried on the Plan at West Point in June & July 1780, with a 5 ½ Inch Royal and a 24 Pound Ball

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Gilder Lehrman Collection #: GLC02437.00832 Author/Creator: Unknown Place Written: West Point, New York Type: Manuscript document Date: July 1780 Pagination: 2 p. : docket ; 32.7 x 21.1 cm.

Summary of Content: Lists amount of powder used and the range of the ball in feet and yards when shot.


Historical Era: American Revolution, 1763-1783

Subjects: Revolutionary WarContinental ArmyMilitary HistoryWest Point (US Military Academy)ArtilleryAmmunition

Sub Era: The War for Independence

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