This one was just given to me by my father, who received it from his father.
I don't recall seeing this when a child, my Dad must have kept it put away.
The only markings on it are "CONN", the numbers read from right to left, and it has the brass slide extension.
Anyone know anything about such a rule?
Jim

I don't recall seeing this when a child, my Dad must have kept it put away.
The only markings on it are "CONN", the numbers read from right to left, and it has the brass slide extension.
Anyone know anything about such a rule?
Jim
Last edited: