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 7035-01-331-5614
NSN 6105-01-449-1862
NSN 5930-00-912-0508
NSN 6610-00-155-1334
NSN 7035-01-167-2241
NSN 5950-01-555-8152
NSN 6150-01-294-5868
NSN 6105-01-546-2414
NSN 6240-00-138-9124
NSN 6220-00-184-0362
NSN 5965-00-549-0220
NSN 5975-01-554-2688