"irn560100" . "Stickpin worn by Jacques Grootkerk on his military uniform while a member of the Princess Irene Brigade in 1942. The pin has a red crown and length of red and blue rope."@en . "Stickpin"@en . . "Stickpin worn by Jacques Grootkerk on his military uniform while a member of the Princess Irene Brigade in 1942. The pin has a red crown and length of red and blue rope."@en . "The collection was donated to the United States Holocaust Memorial Museum in 1991, 1993, 1994, 2002 by Paul Grootkerk, the son of Jack Grootkerk, and in 2015 by Doug Thweatt, on behalf of the Estate of Paul Grootkerk."@en . "No restrictions on access"@en . . . . "overall: Height: 2.188 inches (5.558 cm) | Width: 0.812 inches (2.062 cm)"@en . . .