Vintage coin collection in wooden display case

I lost my vintage coin collection I inherited from my grandfather yesterday around 3pm. It was tucked inside a small wooden display case with a glass lid, about 8 by 6 inches, with a red velvet lining and a tiny chip on the bottom left corner. The collection includes mostly mid-20th century US coins and a handful of foreign pieces; there’s a brass compass charm dangling from the hinge and a tiny engraving 'KC' on the front edge. I last had it near LeClaire Park along the Mississippi Riverwalk in Davenport, Quad Cities. It means a lot to me and was a family heirloom—I'd really appreciate getting it back.