This is “St Louis Science Center: Special Edition 50th Anniversary (1960-2010),” a previously-viewed DVD in its original plastic clamshell case with art. Created by Spoken Arts in 1999, the disc is in great shape and plays perfectly (double-checked). Originally built by the Archdiocese of Detroit in 1960, the St. Louis Center of Chelsea, Michigan, is administered by the Servants of Charity Congregation of Catholic missionary priests and brothers who have dedicated their lives to caring for the “poorest of the poor” of the world, especially persons with developmental disabilities.