Here’s some info from Don Markstein’s Toonopedia web site:
Reddy debuted on March 11, 1926. He wasn’t just APC’s spokestoon, but was offered to other local power companies as well. Philadelphia Electric Company was the first of over 200 to license the character. Since then, Reddy’s image has appeared on billboards, company stationery, newspaper and magazine ads, give-away merchandise, and everywhere else a toon can appear â€” including, of course, comics and animation.