. . "irn517415" . "Circular, dark-gray, cast metal pin. The front center has a raised design of a man in left quarter profile, wearing a tricorn hat. There are raised numbers in upper left. Back has spring pin clasp attached by a small metal plate and metal rivets."@en . . "The King Frederick pin was donated to the United States Holocaust Memorial Museum in 2005 by the University of Mary Washington Galleries."@en . . "overall: | Depth: 0.250 inches (0.635 cm) | Diameter: 1.000 inches (2.54 cm)"@en . "No restrictions on use"@en . . "Pin from 1936 commemorating the 150th anniversary of the death in 1786 of King Frederick II of Prussia, also known as Frederick the Great."@en . "King Frederick II commemorative pin"@en . . "No restrictions on access"@en . . . .