Our Collection

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.

Advanced Search
Back to Collection Search

Keystone View Company Trench Mortar in Its Well-timbered Chamber--View Looking Straight Down.

Order a pdf of this item here.

Gilder Lehrman Collection #: GLC09584.138 Author/Creator: Keystone View Company Place Written: s.l. Type: Stereocard Date: 1914-1918 Pagination: 1 stereocard Height: 8.7 cm, Width: 17.7 cm Order a Copy

A mortar sits inside a pit, whose walls are lined with lumber supports, several miles behind the front lines, used to destroy enemy trenches from afar.

Progressive Era to New Era, 1900-1929
World War I
Europe
Ammunition
Artillery
Weaponry
Mortars
World War I

Citation Guidelines for Online Resources

The copyright law of the United States (title 17, United States Code) governs the making of photocopies or other reproductions of copyrighted material. Under certain conditions specified in the law, libraries and archives are authorized to furnish a photocopy or other reproduction. One of these specific conditions is that the photocopy or reproduction is not to be “used for any purpose other than private study, scholarship, or research.” If a user makes a request for, or later uses, a photocopy or reproduction for purposes in excess of “fair use,” that user may be liable for copyright infringement. This institution reserves the right to refuse to accept a copying order if, in its judgment, fulfillment of the order would involve violation of copyright law.