Not trying to be smart but it looks like a dog. GSD's come in all coats and clors from all over the world so a particular color isn't necessarily a good indicator of the animals heritage. The best and only way is to see his papers and do your homework. My girls are both sired by an all black American or Canadian show line and both mothers are Czech working lines way back, A little time spent reading and learning how to interpret the pedigrees on www.pedigreedatabase.com
will answer many if not all of the questions you probably will have. It took me about a half hour to understand what I was reading and it has become simpler each time I go to that site and look at a dogs history. Also you should be very carefull about just buying from a print out of puppies. There is a certain "Spark" that top dogs have and when you see one that strikes your fancy you will be able to talk with the breader about his or hers candidate puppies drive, temperament, hardness and many other things that a piece of paper cannot relate to a potential buyer. It would be like letting your Ex-mother in law find your next girl friend or mate, It will not end up happy any way she does it.... Hope this helps, and remember if it seems too good to be true, it probably is. Don't get suckered in by a smooth operator at a puppy mill or a BYB.