Who do you think might have made this wrench? No sizes on it, but it is 1/2-9/16". It is a really fine wrench.
German? Japanese?
The logo looks like CV in a circle when I zoomed in on your photo. Alloy Artifacts has CV logo being Bonney Forge and Tool Works.
amecks---I looked on AA but didn't check the logo's. Thanks, it is old and too good to be Japan or etc. The fact that it omits sizes also indicates its age.