American of Martinsville has an extensive history and is still producing furniture today, but here's their streamlined story with the pertinent parts for a mid-century fan: Founded in 1906 by Virginia tobacco producers, American of Martinsville furniture line consisted of only bedroom furniture. In the early 1920s the company added dining room furniture and began to expand its offerings through a number of diverse styles. In the 1950s, as the company grew, so did American of Martinsville's reputation for styling and design leadership. With products in almost every design, the company continued to expand its offerings to cover the living room, in both wood and upholstered furniture.
The adjectives that are used to describe American of Martinsville's mid-century furniture the most are "Danish modern" and "high-quality" - at least from what I've found online. And the easiest way to spot their vintage stuff is either by these slats or these pulls and Xs Neither of which the mid-century bar I'm tracking down has, which is making it a little harder to pin down what collection it's from.