I have a friend that gave me a bunch of old shotgun shells. I have done a head stamp search and have come up with the following info on these shells.
.410 shells they are winchester super X brand 3 in 7 1/2 and 4 shot. They are not cripped the are rolled crapped with what looks like a paper wad holding the shot in the shell. All thats on the base is .410 amid ra I've never seen a shell like this. There is very little corrosion on some and other have no corrosion at all. I wiped the brass down with a soft rag and they are nice and bright now. No swelling noted at all. Have one that looks bend so its gonna get soaked in a cup of water then cut up. I also have bunch of 2 1/2 in sugs.
I just did a search for head stamp ID on shotshells these shell are by Winchester repeating arms company. Head stamped WRA .410... Winchester stopped using the WRA stamp in 1906. Damn and he must have 200 of them. Ok the .410 slugs are head stamped w-w .410 that dates to 1907.. Looks like there things might be worth some money. these thing are almost 100 yrs old.... Damn and I was fixing to shoot them....