Keywords: OrdnanceWorldWarII 006.jpg Harry Diamond left Chief of the Orgnance Development Division at NBS shown holding the 81mm mortar shell with the mortar fuze and Dr Alexander Ellett Chief of Division 4 of NRDC shown holding the mortar fuze unmounted Displayed left to right on the table a ring-type bomb fize on a 260-pound fragmentation bomb a rocket with the latest developed rocket fuze a bar-type bomb mounted on a 260-pound fragmentation bomb and a ring-type fuze on the 500-pound general purpose bomb National Institute of Standards and Technology National Institute of Standards and Technology PD-USGov-NIST PD-USGov National Bureau of Standards Missiles of the United States World War II missiles Fuzes Mortar ammunition American WW2 GP-bombs American WW2 fragmentation bombs Harry_Diamond_ engineer |