This is a very nice vintage box combination wrench marked "5/8  VLCHEK WBE20 ALLOY U.S.A. 5/8". It is 8" long and the actual measure size of the opening is .62". This is a very sturdy wrench with the bar measuring .19 x .46" wide. This model has an industrial chrome finish which is about 80% intact, no rust, some minor dings and scratches. The overall condition is good++ both ends very good, minimal wear. From the 1920's-40's era, by a well known quality cast steel hand tool maker!