Vintage coin collection in display case

I’m missing my vintage coin collection in a black leatherette display case with a red felt lining. It holds about 60 coins from the 1800s to mid-1900s, including a rare 1922 Peace silver dollar. The case is roughly 6 by 8 inches, with a glass top and a small brass tag inside the lid that reads 'KB Coins.' I last had it yesterday around 3pm near the Basque Market on Grove Street in downtown Boise; I think I might have left it on a bench outside while I grabbed a bite. This collection has been in the family for generations, so I’m really hoping to get it back; it means a lot to me.