"410-12mm US all brass" shotshell


How old is it, approximately?


The “All Brass” in .410 was introduced “about” 1922 & discontinued in 1927.It was sold as a primed empty or loaded with shot.It was also sold with a single ball.


There is also another variation in the headstamp, “MADE IN USA” around the primer as well as what you show. There was also a brass case marked “CLIMAX”.