I was thinking the same thing... were peds even a thing in 1925?
The History of Steroids in Bodybuilding
"no bodybuilder or lifter was using synthetic steroids before 1956 - they didn't exist. Most likely, only the very highest level West Coast bodybuilders knew of them by 1958. From there it seems that knowledge of Nilevar and Dianabol to build muscle and strength was kept relatively in the closet until the early 1960s...
...As for testosterone itself, Paul de Kruif's 1945 book "The Male Hormone" is often cited as "proof" that bodybuilders knew of and were using testosterone in the 1940s. But even though testosterone had been identified by researchers and isolated in laboratory settings as early as the 1930s, it didn't receive FDA approval as a prescription drug until 1950 and, therefore, injectable testosterone was produced only sporadically and in small batches for research purposes, before that time. De Kruif himself made no clear connection between testosterone use and possible athletic applications, though he did briefly raise the question if it could surpass the effects of large vitamin doses in baseball players - aside from this single sentence, his arguments were purely from the perspective of using testosterone to restore the vitality and health of hypogonadal and aging men...
...For a western bodybuilder or lifter to be using testosterone before late 1954/1955 he would had to have known more about the biochemistry of testosterone and it's potential athletic effects than any western sports physician - and have had access to what was then a relatively rarely used prescription drug. He would also had to have known more about how to effectively dose it than John Ziegler, who would go on to co-develop Dianabol just a few years later. Nobody in the west can say for sure exactly when the Soviets began using testosterone, but the likely date is sometime before October 1954 and possibly as early as 1952."