How many movies have Harald Koivikko and T.J. Särkkä collaborated on?

They have worked on 24 movies together! Their first movie together was Irmeli, seitsentoistavuotias (1948) while their highest rated movie together was Kankkulan kaivolla (1960). They have not worked together since Teerenpeliä (1963). They are most known for their comedy films together.