Here is an original sketch of Tony Walton’s costume design for Ken Howard as Teddy Roosevelt from the original production of 1600 Pennsylvania Avenue, before he removed his name from the production and his work was replaced by others. Now if only we could see what Patricia Routledge’s costume looked like for her famed “Duet for One.” I think there should be a field trip to the appropriate research facilities to find as many press photos as possible. Are you with me, gang…