I've definitely heard of A.C. Bowness, I can't remember exactly what bottles I've seen from them but I'm pretty sure it was either an embossed or ACL mid-century bottle. I just looked them up and it turns out they also have a seltzer siphon, so they may go back further than I thought they did. I'd be curious to know what your bottle is!
Also, I just checked out the mobile version of this site and I can't for the life of me figure out how to post pictures. It doesn't seem to be an available option. No idea what that's about. One thing you might try is scrolling down to the bottom of the site and clicking "Full Site." The full site should still work on mobile, it'll just be clunky to use.