Former Community Services Agency Executive Director Kathleen McKirchy spotted this intriguing sign Wednesday morning while passing through Joliet, Illinois. “At one point, Joliet, just outside of Chicago, had the second largest steel mill in the U.S.,” McKirchy writes. “Its rolled steel rails helped fuel the expansion of railroads in the late 1800's. Not sure what the sign is referring to; the only clues I found are that the building was dedicated in 1950 and the Will County Steelworkers Club was incorporated in 1945.” If you know the answer, you could win a free ticket to CSA’s 2019 Labor Night at the Nats, Saturday, June 22, 7:15 pm as the Nats take on the Braves. Email us at [email protected]