3/4 in x 2 ft x 4 ft Armstrong Ultima Health Zone 15/16 in Square Lay-In Panel - 1938
3/4 in x 2 ft x 4 ft Armstrong Ultima 15/16 in Square Lay-In Panel - 1913
3/4 in x 1 ft x 4 ft Armstrong Ultima 15/16 in Square Lay-In Panel / White - 1990
1 in x 2 ft x 4 ft Armstrong Ultima High NRC 15/16 in Square Lay-In Panel - 1943