“Just When Is My Birthday?” NW 518639 (class C-31P) cupola caboose was photographed at Vardo Yard (Hagerstown, MD) on 06/27/1987. Despite a build date of “12-69” stenciled on the data plate, records in the archives of the N&WHS indicate it was built 01/1970, by International Car Company (Kenton, OH), at a price of $17,921.