Notes: "1)Made for Harry Diamond Laboratory 2) Included U.S. Army Electronics R&D Command logo on the reverse 3) Designed by Clair Stuart Kelley 4) Used to calculate the damage resulting from a nuclear detonation. 5) The calculations are for a ""Neutron"" bomb rather than a fission bomb. 6) A neutron bomb produces it's effect from an intense pulse of ionising radiation, not from heat and blast! 7) Ionising radiation can disrupt communications."
