Lost small black album containing vintage 1980s baseball cards near food stalls at a local fair in Cedar Rapids.

I lost a small album containing my collection of vintage baseball cards from the 1980s while I was attending a local fair in Cedar Rapids. The album is black and holds about 100 cards, including some rare players. I believe I might have left it on a bench near the food stalls. I'm heartbroken over losing these cards as they have been in my family for years.