Hi content GSD if not pure. Are those white legs and feet on the bitch?
It sounds like you want to know if they are pure because you are going to get one of them if they are. If being a pure GSD is important to you, then buy one that has AKC papers if you are the US. SV papers anywhere. Canadian Kennel Club in Canada.
Do not be fooled by wannabe registries like the ACA, Continental Kennel Club, and so many others. They are not worth the parchment.
If the breeder says they're purebred, but cannot give you proper papers, just say no.
If you just want a pet, you don't care whether its a purebred, and these babies are free. Then go for it.
Jenna, RN CGC & Babs, CD RA CGC HIC
Heidi, RA CGC
SG3 Odessa, SchH1, Kkl1, AD
Ninja, RN CGC & Milla, RN CGC
Joy, Star Puppy, RN CGC
Dolly CGC & Bear CGC