I'm not sure about these 2. There could be some Maine Coon, Norwegian Forest Cat, or possibly a couple other breeds in their ancestry. I don't think they are pure bred and I really don't think Siberian is there at all. If so, very little. Having said that...they look thin and maybe not in the best care. There appearance may change with better care and some weight on them. I think you posted $280 for the pair which isn't bad but have they had any vet visits or been tested for anything? From a rescue they have had test and vet visits so something to consider. This guy is a BYB at best from what I can tell. It's a judgement call on your part. Don't let age be a factor but rather temperament and social behavior when you visit them. They all are pretty cats. They just need to be in a better environment and better taken care of. It would be nice to see that happen. Keep us updated!Hi guys I’m attaching a few pics. The guys says the breed is Siberian. Please help me out