In 1915, Gallia was 23 and had his first full season with Washington -- he went 17-11 with a 2.29 ERA and an ERA+ of 130 in 259.2 innings pitched.
Meanwhile, also in 1915, Babe Ruth had his first full season with Boston -- he went 18-8 with a 2.44 ERA and an ERA+ of 114 in 217.2 innings pitched.
Unfortunately, I don't have a 1916 Gallia card (or a T/E-card), but, if I did, I could imagine somebody having traded it for a 1916 Ruth. Of course, by 1917, Ruth had been sensational in 1916 (his age-21 season) -- that year, he won 23 games, with a 1.75 ERA and an ERA+ of 158 on 323.2 innings pitched. The rest of his story is history.
Gallia went on to pitch 9 MLB seasons winning 66 games while losing 69. His career ERA+ is 94. His place in history is that he was the first American League pitcher to hit three batters in the same inning.
https://www.net54baseball.com/attach...1&d=1640260356