Special regulations. 742-507-9. Inspection of supplies and equipment: Serviceability standard for bomb, incendiary, 1M, 100-pound, M47 type, bomb, incendiary, NP, 100-pound, M47 type, bomb, incendiary, 1M, 500-pound, AN-M76, bomb, incendiary, PT1, 500-pound, AN-M76, bomb, smoke, PWP, 100-pound, M47 type, bomb, smoke, WP, 100-pound, M47 type, bomb, smoke, WP, 100-pound, M47 type; Feb. 18, 1952.