This is a H&H magnum (.300 H&H or .375 H&H) receiver from a 1949 Model 70 rifle, stamped with the serial number 107686. This is a "transition era" receiver, with the clover leaf tang but the smooth rear bridge. It has one hole drilled and tapped in the rear bridge for a scope mount.
Bluing - Re-blued, excellent condition without blemishes, wear, or fading.
Metal - An alignment mark is present on the face of the receiver, see pictures. Aside from this, the metal of this receiver is in excellent condition with no scratches, pitting or other defects.
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.