'Pim en Pom' (De Spiegel #19, 16 February 1946).
Little is known about the GOAB Studio and its owner. The studio produced and published a landscape format-shaped booklet containing the balloon comic 'De Geest der Savanna' in 1948. GOAB also made the 'Pim en Pom' comic strip, that ran in the Christian magazine De Spiegel from the final issue of 1945 until 1946.
Image from www.stripboekmuseum.nl/stripgeschiedenis2/1940-1950/geestsavanna.htm.