Black Samsonite 24-inch suitcase with red tag

I lost my black Samsonite 24-inch suitcase yesterday around 3pm near the Times Square subway entrance at 42nd Street and 7th Ave. It's a matte hard-shell with a bright red luggage tag on the handle and a noticeable dent on the bottom-left corner. Inside are a travel diary and a small photo album—sentimental stuff I can’t replace. A blue gym-tag is looped around the zipper pull, and the TSA lock is still on. It really means a lot to me to get it back; if you've seen it, drop me a line.