The tradition of pilots who flew the U.S. Mail being armed carried on until at least into the early 1970's. In 1974, I was a young pilot flying the U.S. Mail in old twin engine airplanes (Beech 18's, for the pilots on this forum!) for a small private air carrier, but under a government contract. I was told to get a pistol and carry it when I flew the U.S. Mail runs. And so I bought my first handgun, a Colt .25 Jr Pocket...... Not exactly the best gun to defend against gangs of Mail Robbers, but I just wanted something small and easy to carry, knew zero about firearms at that time, and wanted something that would at least comply with the instruction to be armed that I had gotten from my boss. Of course, I did take it out to the range, which was fun and which led to interest in buying and shooting other firearms, and from there, a lifelong association with shooting activities. All started out because of the requirement (and later, tradition of) US Air Mail pilots being armed.