Mailed from Valley Forge, Pennsylvania in November 1905 with a crisp one-cent Franklin stamp, this rare souvenir mail card unfolds accordion-style — a leporello strip of miniature photographic views that cascades from the main card like a secret ribbon of history. The cover image shows Gen. Washington's stone headquarters flanked by two Revolutionary War cannons on the lawn, its Georgian entry door and multi-pane windows perfectly preserved. Inside the fold-out strip: the Bridge, Entrenchments used by Gen. Washington, Valley Creek Road, and the Washington Inn — a complete pilgrimage in palm-sized photographs. Published by the Rotograph Co. of New York City, printed in Germany, and addressed to a Mrs. A.F. Bickford of Chehalis, Washington, this card crossed a continent to deliver a piece of American revolutionary heritage. Patent date December 5, 1905 is printed boldly on the front image.