[Broadway] Merman, Ethel. (1908–1984) & Martin, Mary. (1913–1990) "Together on Broadway" - Signed ProgramSigned program from the joint performance, New York, 15 May 1977, by the two Broadway legends: the powerful voiced American actress of stage and film musicals, Ethel Merman, and the beloved American actress and singer, Mary Martin. "Together on Broadway," signed on title pages. The program, which may be flipped and read from the reverse until mid point, contains two title pages, at front and at rear, one listing Merman first, the other listing Martin