Serial Power On: September 24, 2021July 19, 2021 By: Romeyn 0 (0) Here are 52 Weeks of Box Office insurance! 1939 Trade magazine advertisement for upcoming Universal serials How useful was this post? Click on a star to rate it! Submit Rating Average rating 0 / 5. Vote count: 0 No votes so far! Be the first to rate this post. Share this:XFacebookTumblrRedditEmailPrint