An item consisting of two or more calculators of circular slide rule type, designed to provide data concerning a nuclear cloud (fireball), as observed from the ground, and also to provide data to facilitate the making of estimates or predictions concerning radioactive fallout hazards.
Classification: Calculating machines except electronic
NSN 5935-01-394-7276
NSN 5975-01-278-9821
NSN 5975-01-483-4110
NSN 5905-01-489-1849
NSN 6135-01-084-1609
NSN 5905-00-539-5746
NSN 5855-01-003-7102
NSN 6220-00-044-5917
NSN 6620-01-172-9314
NSN 5965-00-275-0491
NSN 5965-00-677-1461
NSN 6685-01-384-3686