This is the only photo I got, 4 digit serial number on barrel and action match. Front ring has Amberg 1917 and just ahead of that on the top of the barrel is K66S. GEW 989 on left side of the receiver. The barrel seems a little short but appears to have a GI sight on it,,,, I don't think the barrel has been messed with. In a few days I can get more photos. Of course it's a mauser, but it looks like a carbine and I can't find anything that talks about a carbine gew 98. Also the lower sling swivel is just behing the grip of the stock, not down toward the butt.