Vintage coin collection in blue display case

I lost my vintage coin collection in a blue display case with glass lid, about 6x8 inches. Inside are 12 coins, including a 1916 Mercury Dime and a 1924 Peace Dollar, plus a couple of commemoratives. The case has a black velvet lining and a brass latch. The lid is laser-etched with the initials 'JB' and the outer shell is slightly chipped blue enamel. I last saw it yesterday around 3pm on the sidewalk outside the Centre at Fort Smith on Garrison Ave near the coffee shop. This collection means a lot to me — it was passed down from my grandfather and I really need it back; if found, please reach out.