Framed landscape painting with gold frame

I lost my framed landscape painting yesterday around 3pm near the Grand Opera House on Great Victoria Street in Belfast. It's a small acrylic on canvas, about 16 x 20 inches, with a slightly ornate gold frame and a tiny chip on the lower-right corner. The scene shows a moody harbor at dusk with a red lighthouse and a faint signature 'L. Kerr' in the bottom corner; there's also a faded studio label on the back and a light coffee stain on the back panel. It was a gift from my grandmother and has sentimental value, so I’d really appreciate it being returned if someone picked it up. If you found it, please let me know.