I don't have it here to post pictures, but my Son found a very heavily used Mauser that was supplied to China by Mauser under one of the Mauser contracts in the 1930's. I have examined it in detail. It is a normal large ring model 98-- everything standard. It has the stock that was typical of the Mauser K98k (side sling, firing pin removal device, etc). It has the proper Mauser banner on the receiver, numbers matching barrel and receiver, Chinese acceptance stamps on the receiver, barrel and stock. From pictures it is very clearly either a Mauser Standard Model 1933 or an early (1937-1939) K98k. Here's the catch: Both of these designs were sold to China in the 1930's. The difference was that most of the Standard Model were stamped "Standard Modell" on the side of the receiver. This one is not stamped Standard Modell-- the side of the receiver is unmarked. The K98k's sold to China had a Mauser Banner on the receiver and no markings on the side of the recever-- so may this is a K98k. The trouble is-- the caliber is 7 x 57. I know Mauser sometimes made the Standard Modell in 7 x 57-- but I've never heard of a K98k in 7 x 57. So-- any experts out there: Were there ever any K98k's sold in 7 x 57? Or-- were there Standard Modell rifles sold without the "Standard Modell" stamp on the side of the receiver?? Its not a big deal either way, because the rifle is not a collector. It has a replacement bolt and the muzzle has at some time been damaged and the crown machined back to fix the barrel - we're just curious.