Craftsman used different ways of stamping his name on his products. This mark includes Philadelphia which is obscured by the handle. Courtesy of Sam Conn.
The signature of John Schlosser, a York, Pennsylvania coppersmith on a pint mug. Formerly in the collection of Henry Kauffman. 3 different copies, 3 different sizes. (3 1/2" x 5" 5" x 10"and 8" x 10")
Provenance
Photographs from the estate of Henry Kauffman. Object in Winterthur's collection.