This rare set of documents is an original financial ledger from September 1919 for the Chicago National League Baseball Club — better known today as the Chicago Cubs. It includes handwritten notes and official bank statements detailing checks, deposits, and balances for the organization. Items like this offer a unique glimpse into the behind-the-scenes operations of a Major League Baseball team over 100 years ago, at a time when baseball was cementing its place as America's pastime. What's particularly fascinating is that this ledger comes from the same era as the infamous 1919 Black Sox Scandal, a major event in baseball history. While the Cubs weren't directly involved in that scandal, they were one of baseball’s cornerstone franchises, playing at the newly renamed Cubs Park (today's iconic Wrigley Field). Cool fact: in 1919, the Cubs were owned by William Wrigley Jr., the chewing gum magnate, who had just taken a controlling interest in the team. This ledger isn't just paperwork — it’s a time capsule from the dawn of modern professional baseball.