#aacl clover

For St. Patrick’s Day I offer this very small button. It’s about the size of a dime, and a bit of a mystery. I don’t know what organization this represents be it a company or one of the old athletic clubs. The inside has a faded union stamp that looks just like the ones from other early 20th century pins I own, so that helps give me a date. Also, this most likely came from Chicago. I can find no information on an AACL or any group that had a logo with those initials and a clover. I tried many variations in my search. (Could CL = Chicago League? - etc) My best guess is that it came from either the German Chicago politicians in my family, that owned it for some sort of political reason to maybe show solidarity. Or it came from the smaller Irish side of my heritage, and it represented a group that an ancestor had been member of or supported. 

If anyone out there has an idea of its origin I’m all ears.