Many thanks to Colin Roets for identifying Bollie's origin. Bollie was originally "Bobo" - a Dutch children's magazine, originating in 1968. From 1970-1994 he was drawn by Italian artist Sergio Cavina.
Bollie is a Comic Strip that has entertained generations of children in South Africa since the 1960s. Bollie starred in the magazines Die Huisgenoot, Sarie Marais, Landbouweekbland and Vonk, before launching his own magazine in 1968.
An ad for Bollie Magazine, from Vonk 05 May 1969:
After the launch of Television services in South Africa in 1976, Bollie joined TV Wonderland Magazine:
Classic Afrikaans Comic Strips