Entire Contents Created by Harry "A" Chesler, Jr. Features Syndicate, N. Y.
Note that the syndicate was named after packager Harry "A" Chesler's son. Chesler Sr. may or may not have edited, as he had editors within his packaging operation.
Jerry Bails’ Who’s Who lists Ken Battefield as having worked on Skyrocket for Chesler in 1944, indicating further that 1944 is the probable year of this comic book's publishing.