Vintage baseball card binder with rare rookies

I lost my vintage baseball card binder yesterday around 5:30pm near Riverside Plaza on Market Street in Riverside, Inland Empire. It's a black vinyl binder, about 11x9 inches, packed with 1990s Topps and Upper Deck rookie cards; the cover has a red Topps sticker on the spine and a small scratch. Inside the front cover there's a laminated photo of my grandfather and me trading cards, plus a blue Sharpie note that says 'Dad's fave' on the first sleeve. This binder means a lot to me—it was a gift from my grandfather, and I really hope it turns up. If you found it, drop me a message here—I'd be forever grateful.