This is a barreled K98 Mauser Action. It has some pitting on the receiver, and a few spots on the underside of the barrel. The barrel seems to be worn out, with only hints of rifling left and pitting/crud in the grooves. Cleaning may or may not improve it.
The receiver is 660 code marked, which is the Steyr factory. It has 1940 stamped on the receiver. The serial numbers of the barrel, receiver, and sear match. The nazi eagles have not been peened out, and the proof-marks/stampings are intact.
This would be a good gunsmithing project, or it could be restored as a display piece or re-enactment rifle. Shipping is $30 by UPS or FedEx ground. Must have a valid FFL copy before shipment. Since this is not a complete rifle in original configuration, I cannot ship to a type 03 FFL. Payment can be by check or money order; checks will be held for clearance. More detailed pics are available upon request.