Site of Thoreau's Hut, Lake Walden

Front:
THOREAU'S COVE D71341 SITE OF THOREAU'S HUT, LAKE WALDEN, CONCORD, MASS. COPR. DETROIT PUBLISHING CO.

Back:
20 "PHOSTINT” TRADE MARK - REG V. S. PAT OFF MADE ONLY BY DETROIT PUBUSHING CO. FOREIGN, TWO THIS SPACE MAY BE USED FOR MESSAGE.