Grey knit beanie with faux fur pom

I lost my grey knit beanie with a fluffy white faux-fur pom yesterday around 3pm near the Custom House Square in the Old Port, Portland. It's a mid-sized wool blend beanie with a cuff, and it has a tiny blue thread stitched 'M' on the cuff; the white pom is a little loose. The yarn shows light pilling from daily wear. It holds sentimental value—a gift from my grandmother last winter, and it always kept my ears warm on Maine days. If anyone found it, I’d really appreciate getting it back; I can meet at the Portland Public Library steps or arrange a drop-off on Fore Street.