Possessing an indented single stainless trim piece across the top of the cabinets and a study center bench, the ARO merchandiser appears to be able to take a variety of different center sections. Much of the benches details, like hinges, handles and proportions, tend to have me believe that they may have been built out of surplus Lincoln Engineering units. We have not seen the rectangular ARO emblem until January 1948 and after, so that is the best gauge of when these cabinets would have been manufactured.
If you have one of these workbenches, please reach out to us.