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 [Building plan]

High-resolution images are available to schools and libraries via subscription to American History, 1493-1943. Check to see if your school or library already has a subscription. Or click here for more information. You may also order a pdf of the image from us here.

Gilder Lehrman Collection #: GLC02437.10448 Author/Creator: Unknown Place Written: s.l. Type: Sketch Date: circa 1783 Pagination: 1 p. : docket ; 24.8 x 40.7 cm.

Drawn colored plan for a powder magazine, with views from the side and front, with a scale. Docket written in Henry Knox's handwriting.

Order a CopyCitation Guidelines for Online Resources