US fuses from 1960's


Dan Dietz just gave these to me, but I don’t really know much about them, except that M43 is live(unfired). What are they? The headstamp scan is in the reverse order, comparing to the photos. Do I need any special care with that live M43? Is it stable?


These are not fuzes. They are artillery shell primers. The live one is not a problem unless you pound on the base with a sharp instument or throw it in a fire.