Tuesday Comic Strip Day.
It is widely known that cartoonist Al wiseman joined Hank Ketcham on the Denis the Menace from very early on. Their syles were alrady similar and it apparently took Wiseman very little time to adjust to Ketcham's radical inking style. Still, if you look at the number of redo's and overlays he produced for his succesor when he finally left the panel years later, it is hard to imagine him not helping his friend out in any way at leats in the first perio. The Sunday page started in 1952 and here are a few sampled. The style here closely resembles that of the daily panel at that time.