.815″ high x .560″ wide x .210″ deep. All brass. Nickel plated finish. The lock opens by inserting a pin on the side of the body. Commemorates the 400th Anniversary of Columbus Discovering America. “The World’s Columbian Exposition” was the title of the 1893 Chicago Illinois World’s Fair. We believe the watch fob was sold seperatly.Patent # 373218.