The paper hulls are old enough to be cool, but have little collector value. Lots of them out there. More than likely not worth more than a dollar or two. The old boxes are a different story... if you have the boxes (pre 1970), they have some value. The older the better. Get down into the 1930s and lower you can be talking $50+ just for the box.
I'd keep the cardboard hulled shells, just because they are cool. A few cardboard shells are still made today. I'd say $7-8 a box is a fair price on plastic hulled shells.
Any of the shells should be safe to shoot.
Last edited by simoncool; 04-10-2020 at 11:22 AM.