On the rear of the cylinder, there are usually 2 lettters- LG or JG (Leo Gasser, or son, Johan) a 2 digit number, and then the serial number. The 2 digit number is the year it was made.
IIRC, they had a funky sort of safety that a double action triger pull released. Cavalryman's pistol- note the resemblance of the grip to a saber?
What we have here is... failure- to communicate.