Paramount: Informations

In 1934, the William L. Lange Company (New York) debuted the Paramount guitar series - and some of the models were built by the C.F. Martin guitar company. However, LangeĊ½s company went out of business in the early 1940s. In the late 1940s, the Paramount guitar line was reintroduced and distributed by Gretsch & Brenner (source: Tom Wheeler, American Guitars).
But it looks like no later than 1942, a Paramount line of guitars were built by Harmony.

Source: Harmony Database