<div class="description">
Photograph of the cornerstone ceremony for the new building of Mainos-TV-Reklam in Ilmala, Helsinki, in the so-called “Pöllölaakso”. Pentti Hanski (1924–1997) doing the honors. The building will be demolished in 2022 or 2023.</div>
<div class="fn value">
<span lang="en">Anonymous</span><span style="display:none">Unknown author</span></div>
Taken on 23 June 1966
Hanski, Pentti: <i>Pöllön siivin</i>, p. 146. (Helsinki 2001.)