Golden-brown Labrador mix with red collar; missing near Broad Street

I lost my golden-brown Labrador mix, Milo, yesterday around 3pm near the canal towpath behind Broad Street in Birmingham. He's about 22 inches tall, with a red collar and a small brass bell, and there's a white heart-shaped patch on his chest plus a tiny scar above his left hind leg. He’s friendly but a little wary of strangers, so please approach calmly. It really matters to me—he’s my daily walking buddy and the kids adore him, and this dog has sentimental value since he’s been part of our family for years. If you’ve seen him, please text me or message here; I’d be forever grateful.