This is a receiver from a 1951 standard caliber rifle. The serial number is 188199.
Overall, this receiver is in very good condition. The original bluing shows minimal signs of wear. There are no significant scratches, nicks, or other forms of metal damage on the receiver. The rear screw hole on the rear bridge has been a file or grind mark on it but the hole is still usable.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE
NOTE: Laws governing transfer of firearms require that receivers be shipped to an FFL holder. If you do not hold an FFL or C&R license, you will need to enlist the services of an FFL to complete the transfer. If needed, we are happy to assist you in locating an FFL holder near you who can complete the transfer on your end.