The one I saw was stamped K98/29 on the sidewall and was shimmed to fill the gap left by the small ring receiver. Looked sView attachment 345152
Runner, just be sure that the rifle was designated as a K98-29 (or similar). A lot of times, collectors state-side dropped in a sporterized K98 into a spare Wz.29 stock and sold the rifle like that. An easy way (other than the siderail marking) to tell a true K98-29 conversion from a simple stock swap K98 is to see if there isn't a gap in the stock around the receiver area (small ring K98 in a regular Wz.29 large ring stock will show an obvious gap in the wood).