The Mauser HSc is a 7.65mm pistol introduced in Nazi Germany during World War II, and manufactured until 1977.
At approximately serial number 701345 the grip screws were relocated upward to a more central and sturdier position.
The German Army began HSc procurement with an initial order for 3,000 pistols in early 1941, beginning with serial number 701,345, and, intermittently, ending about #712,000.
These bear an acceptance mark of Eagle/135 on the left rear trigger guard web and the two Eagle/N firing proofs on the right side.
The high quality finish of the earlier pistols starts to decline in this production segment.
HScs with frames and slides of different finishes may exist and would be extremely rare and desirable to military collectors.
Military personnel of all ranks not issued sidearms often purchased HSc pistols in the commercial marketplace and carried them in the field.
Most went to German police units, and others were exported, primarily to the North American commercial market where they were available in both blued and nickel finishes.
80," or "SAB-2001 Super" was a variant made by Renato Gamba in Gardone, Italy, under licence from Mauser.
The last three digits of that serial number are located on the bottom of the chamber (stamped) and the flat panel of the slide just under the muzzle (electropenciled).