What Do I Have?

Hello all,
I recently inherited literally tens of thousandsmof rounds of varying calibers. They are all in their original boxes and appear quite old. Before I shoot all this ammo,upmat the target range please let me know if there is any collector value in these brands. If so I will save/sell it. I have included a picture that is pretty representative of what I have. Thank you in advance.

What you show there isn’t really that old. I don’t know US boxes or commercial ammo that well, but I don’t think there is anything pictured that’s earlier than the 1940s or '50s. Now don’t get me wrong, among the ammo you received, there could very well be something rare and valuable. Might be a good idea to make a complete listing for evaluation, or let an experienced collector take a look at the entire collection.