Collectible relic brass from WWII. These are single 30-06 brass casings with WWII dates. All are DEN, for Denver Ordnance Plant, which among others made ammunition for the US forces during World War II From 1941 to 1945. It was a division of Remington Arms. These casings are sold individually. Great for a WWII collection, something cool to have sitting in a display or on a shelf next to your other WWII items. These have had the primers removed.