With a patent date of 1915 the piece is dated at that date. 1915-16.
Two factories, one in Madison, the other in Oshkosh, Wisconsin. Started business in 1912, and stuck it out for many years. They made suitcases, wardrobes, and smaller bags. Built to last, and very attractive. If you find one of these it's usually in very good condition.
Link with company info.
http://www.brettunsvillage.com/trunks/history/trunkads.html
Oshkosh Trunk
Organized in March, 1902. The company was sold in 1939 to The Plotkin Brothers of Chicago, the name changed to Oshkosh Trunks and Luggage and went out-of-business in 1962. If the exterior is beige duck cloth with red and white stripes, the trunk is from the front line, the Chief. Sizes ranged from 9 x 20 x 28 inches to 28 x 29 x 43 inches, with various combinations of drawers, hangers, and other features. To inquire, send dimensions, colors, list of features, year, and any names (exact wording) stamped on the trunk.
http://www.oshkoshpubliclibrary.org/pages/history/oshkosh_business.html
Value is around 250.00 to 300.00
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