Not sure how old this plaque is, I've owned it at least 35 years. It's I believe, cast aluminum, made by Chicago Metal Craft from Port Chicago, Calif. It's 9 1/8 long and 4 3/4 high. It still retains some of its original red and black paint and is in overall very good condition with no cracks or chips.
Being from Chicago, I had tried to do some research on this club but was unable to uncover anything. It's a nice period piece and will make a great addition to your collection. I have never come across another.