J. A. Ruby

Joseph A. Rubinstein was co-owner of Consolidated Magazines, a comic book publishing company active primarily between 1944 and 1945. Alongside Jacob M. Kornfeld, a lawyer involved in various industries, Rubinstein published titles such as "Lucky Comics" and "Key Comics." In the later stages of the company's operations, Lloyd Jacquet, a prominent figure from Funnies, Inc., was also listed as an owner. Rubinstein likely served as the editor for this brief comic line under the pseudonym "J.A. Ruby." [Source: https://bleedingcool.com/comics/the-mystery-and-lurid-terror-of-lucky-comics-up-for-auction/]