My 1887 Pud Galvin card looks like it says "Calvin."
Do you think that was a subtle reference by the creators of Old Judge cards to theologian John Calvin, upon whose theories Presbyterianism was based? Furthermore, through that could it be a veiled reference to the Presbyterian cocktail as a subtle dig against the teams in the American Association - the upstart "Beer and Whiskey League" - that was challenging the teams from the more established National League? Galvin came from the American Association to the National League in 1887.
Just a thought.