Blue Penguin Classics hardcover of 'To Kill a Mockingbird'

I lost my blue Penguin Classics hardcover of 'To Kill a Mockingbird' yesterday around 3pm near the Lawrence Public Library on Vermont Street. It's a 6x9 inch edition with a blue cloth cover and white lettering, the spine is a bit creased and the pages are lightly yellowed from wear. There’s a coffee ring on the back and a small sticker inside the front cover with my handwriting on it. It was a gift from my grandmother and holds real sentimental value, so I’d be incredibly grateful to get it back.