Hank Gowdy is one of my favorite pre-war players. The hero of the 1914 Miracle Braves - he batted .545 in the series. He was also the first MLB player to enlist in WW1.
A really interesting career but not quite enough for the HoF. Still, he received votes for the HoF 17 times.
You can read more about him at SABR
https://sabr.org/bioproj/person/hank-gowdy/
I'll start with a few of my items:
W514, W516-1 and 2 plus a 1923 Type 1 Photo when Hank was traded to the Giants.