Binder of 1980 Topps baseball cards

I found a binder of 1980 Topps baseball cards this afternoon around 3:10pm in front of the Circle Starbucks near Monument Circle on Market Street in downtown Indianapolis. The binder is bright red with a clear plastic cover and contains about 60-70 cards, mostly well-preserved with crisp corners, and a few rookies that fans would recognize. There’s a handwritten label inside the front cover that reads 'Topps 1980 Complete Set,' plus a tiny coffee ring on the spine from when someone nearby sipped a drink. I grabbed it to keep it safe, hoping the owner will recognize it and reclaim it soon.