and 50's. I grew in that era and young pups learn by watching the big dogs. All men and most women has a knife on them or in a purse. It was just part of normal everyday life. In fact, it would have been abnormal for a man NOT to have a knife. Even the priest down the road at St, Andrews had a little two blade jack knife about 3 inches closed. That was the normal pattern; a small, 2 3/4 to 3 1/4 in ch two blade jack or penknife pattern. They were so common place, there was a stand up cardboard display at the five and dime store, right up front by the cash register, that held them. They were made by Imperial, or Schrade Walden, Camillus, PAL, Ulster, or others.
There was even a folded sheet metal folder made by Trim, called the trio, that was sold alongside their nail clippers. It was a little bigger than a SAK classic, with a cutting blade, screw driver/bottle cap lifter, and nail file. It was made to go on a keychain, and they were VERY popular. The little jacks came with a white fake pearl plastic scale handle, or white 'crushed ice' celluloid scale handles. Blades were decent carbon steel and they sharpened right up on the bottom of a coffee mug.
Also around in the 1950's was the humble Christy knife. Made since the 1930's, it was around and you saw them now and then, but not in the numbers of the little white plastic handle jackknives down at the five and dime store. A lot of the me who came home from WW2, just kept on carrying what Uncle Sam had given them. My Uncle Charlie carried his Camillus TL-@( for many years after the war, and it was worn down to nubbins, so I brought him a new one when I came home on leave from my own army service. You'd thought I handed him Excalibur! He carried that one until he passed away. In the war, Uncle Charlie ran up a beach in Normandy and walked most the way to Berlin.
Dad carried his little Case peanut, because his mother had gifted it to him as he left for college. A family of Irish immigrants, dad was the first one to get a higher education, so his mother, my grandma gave him a little knife fit for an academic. He carried that knife until age and arthritis made it hard for him to open it and he switched to a Christy knife. In the war, dad had been with one of the spook outfits, and had dropped into occupied France a few occasions. After the war, he stayed on with the outfit in D.C., but after he and mom had a really big fight over it, he finally took the office job upstairs, as a married man with a couple kids didn't need to be playing cloak and dagger games in East Berlin. He gave in to mom, me, and sister Ann, who made it clear we wanted a father on premisses. He loved the Christy knife, and bought 50 of them to hand out to the operatives in his section.
My Uncle Paul was a machinist at the Curtis Wright engine plant in New Jersey, and he carried the little give away knives with the tool logos on them from the vendors selling the dies, drills and bits, and thread taps. He had those little 3 inch closed two blade pocket knives with logos from SK tools, Timken bearings, TRW taps, Bridgeport Milling machines, and others. I don't think Uncle Paul ever had to buy a new knife, he had a supply of give aways from the venders. Most of these knives were made by Ulster or Imperial. They actually cut good and sharpened up great. During the war, Uncle Paul had driven the landing craft ashore at some islands in the South Pacific that the Japanese really didn't want to let go of.
All those guys came home from the war, and got jobs in machine shops, car repair garages, welding shops, factory production lines, driving trucks, and none of them saw need for more than a little penknife size pocket knife. They worked hard, made the 1950's American dream come true with a house in the new suburbs with tract housing developments, and two cars in the driveway. They sent their kids to college in the 1960's so they would have a better life and not work as hard as their old man. This was the great migration to the city after the war. The birth of the office cubicle. Now, their grandkids work in offices doing the daily TPS reports on the computers and feel the need for a knife that Conan The Barbarian would appreciate.