WW2 9mm Winchester subgun ammo
several boxes of Winchester 9mm submachinegun ammo. There are some that are 64 round boxes and some 50 round. They are all marked for submachinegun use only. I have some 64 round boxes that are not marked. All have winchester headstamps from 1944. All are 115 grain FMJ. How do I reach cartridge collectors and what are these worth?