Olli Salo: Pipe and propeller sculptures, 1998. © Photo: HAM Helsinki Art Museum / Maija Toivanen Putki- ja propelliveistokset / Pipe and propeller sculptures Artist Olli Salo Ilveskorvenpuisto, Vuosaari, Helsinki Olli Salo’s (b. 1967) stone Piping I-II and Propeller I-II were placed by a pond in Ilveskorpi Park in Vuosaari in 1998. The pieces are roughly cubical in shape, made of granite and spectrolite, with various geometric figures and images of pipes and propellers. Salo’s timeless stone sculptures evoke both the tombstones of the Vikings and their feel and the dialect of form and semantics of Contemporary Art. The sculptures belong to the City of Helsinki’s art collection, which is managed and curated by HAM. Read more.. At map