Gray tabby cat with blue collar near Main Street

I lost my gray tabby cat yesterday around 6pm. He's about 10 pounds, short hair, white paws, and a small notch in his left ear. He wears a blue plaid collar with a tiny brass bell that jingles as he walks. He answers to Milo and is usually shy around strangers but warms up when I call his name. This cat has been with our family for years and means a lot to us—it's really hard not knowing where he is. Last seen around the Logan Library on Main Street; he sometimes wanders toward the Center Street shops near the river trail. If you spot him, email me at [email protected] so we can arrange a meetup.