Grey tabby with white bib lost near Kelvingrove

I’m absolutely heartbroken—my grey tabby cat, Milo, slipped out yesterday around 3pm and I can't find him. He's medium-sized, with a distinctive white bib on his chest. He wears a blue collar with a tiny silver bell. He was last seen near the Kelvingrove Art Gallery and Museum, then moving along Argyle Street toward Byres Road. I adopted him last year; he’s been with me through a lot, so this has sentimental value. If anyone spots him, please message me—I'm really worried and just want him back home.