How many movies have Esko Kajonterä and Pirkko Mannola collaborated on?

They have worked on 4 movies together! Their first movie together was Yks' tavallinen Virtanen (1959) while their highest rated movie together was Opettajatar seikkailee (1960). They have not worked together since Opettajatar seikkailee (1960). They are most known for their comedy films together.