This 50 lb plate is part of what Sid Teeples called Sid’s System, which was established in 1921. He included instruction courses with the purchase of his weightlifting equipment. He also had Sid’s News which had a circulation of 2,500 according to his ad which also showed a list of So. Calif. Weightlifters Schedule of Events for 1948 – 49. His ads state that all his barbell and dumbbell rods are 1″ in diameter. The plate shown must have been drilled out to fit an olympic bar.
He also envisioned a Health Resort and Mail Order Headquarters near Indo, Calif. He asked for donations to build this Health Resort. The donors could use the resort and profit from others who paid to use the resort for health instruction or rest.