Good morning Mark,
I married into a Detroit family and Kaline was my father-in-law's hero. The two of us had a chance to meet him at the 2014 National in Cleveland. Also, as Kaline was a Baltimore native, my grandfather played American Legion ball with him. My grandmother insists there is still a photo of that team buried somewhere within her house. I keep offering to help her find it, given its historical value, but still no luck to this day. Thank you for posting the photo of Brooks and Kaline.
This pennant has been featured in another thread on Net54:
https://www.net54baseball.com/showthread.php?t=283392
The seller cut up two complete sheets and sold them on Ebay. I purchased one Orioles and one Tigers pennant.
I'm reaching out to all the collectors I know who specialize in oddball items (many of them not on Net54) to see if anyone has anymore information on their origins.
1955-57 Orioles Pennant.jpg