Back in the states, Gibson placed very high in many local AAU lifting meets in the southwest and west coast. He was the 148-pound Arizona champion for eight years running and at the 1955 Southwest United States AAU Weightlifting championships, he set a record that he had been pursuing for over 15 years: a clean and jerk of 250 pounds — pretty good for a light weight. Gibson also did a little bodybuilding, winning Mr. Arizona in 1950 and Mr. Tucson in 1951. At any rate, eventually, he founded “Gibson Gym Equipment Co.” which manufactured and sold gymnastic supplies and sporting goods, among them weight sets, where this plate came from.
Case in point: here’s a weird set of barbell plates, 45 lbs, yet in the approximate diameter of a 25 lb. plate as you can see in the lower right pic for comparison.
As you might expect, these unusual plates are quite a bit thicker than normal At first I thought they were simply two 25 lb. plates welded together, but that is not the case, they are, in fact, cast that way as is the “45” on the front, They have no other markings other than what is shown. I’ve never — and I do mean never — seen anything like these plates in any of the books, magazines, catalogs or price lists that I’ve come across.
In all my years, I’ve never seen anything like these barbell plates. No idea who “Cal Gibson” was, and never found any trace of him in any old magazines. And 50 lbs? Not common at all. I do, however, dig his style; that thunderbolt design looks SHARP!