Jouko Toiviainen: Mika Waltari memorial plague, 1983. © Photo: HAM Helsinki Art Museum Mika Waltari -muistolaatta / Mika Waltari memorial plague Artist Jouko Toiviainen Saariniemenkatu 6, Siltasaari, Helsinki The facade of the building at Saariniemenkatu 6 has a memorial plaque for the writer Mika Waltari, showing the author in relief, and with the text: AUTHOR, ACADEMICIAN MIKA WALTARI WAS BORN ON 19 SEPTEMBER 1908 IN A HOUSE THAT STOOD HERE. The house was a timber building, in which Waltari lived for the first three years of his life from 1908-12. Mika Waltari memorial plaque is made by Jouko Toiviainen (b.1946). The work doesn’t belong to the City of Helsinki’s art collection, which is managed by HAM. Read more.. At map