Sparkler Comics — United Features
Issue: #23
Last valuation update: 2026-01-16
Creators: Edgar Rice Burroughs
Characters: Tarzan, Broncho Bill, Hap Hopper, Hans Katzenjammer, Slats, Ella Cinders, Abbie, Fritz Katzenjammer, Nancy, Spark Man, Dur Captain, Mama Katzenjammer, Race Riley