Vintage 1950s coin collection in leather album

I lost my vintage 1950s coin collection yesterday around 3pm. It was tucked inside a black leather coin album, about the size of a paperback, with a small gold crown embossed on the front and a visible scratch along the bottom edge. The pages inside have red interleaving and hold around 60 coins—mostly British pennies from the 1950s and a few Commonwealth pieces. I even tucked a faded receipt in the inside pocket from Hawkins Coin Albums, 1952, written in faded ink. This collection means a lot to me; it was my grandfather's, and I really want it back. If anyone found it near the Corn Exchange on The Headrow in Leeds yesterday, please reach out—I’m really hoping to get it back.