With that type of 2-piece extractor it could well be a 1961 proofed gun. It's Sauer's later type extractor that lifted the shells out farther and made them easier to grasp.

This is the earlier type extractor. It's easy to see the advantage of the later type extractor.

[Linked Image from i.imgur.com]

Hunt with Class and Classics

Religion: A founder of The Church of Spray and Pray

Acquit v. t. To render a judgment in a murder case in San Francisco... EQUAL, adj. As bad as something else. Ambrose Bierce “The Devil's Dictionary”