https://commons.wikimedia.org/wiki/File:Olavi_virta_levytukku.jpg<br /> https://en.wikipedia.org/wiki/Olavi_Virta

Based on the two-tone hood/body, the hood hole, the return arm, the screw locations in the back and what appear to be Magic Margins, Olavi Virta appears to be using a 1948/49 Henry Dreyfuss designed Royal Quiet De Luxe (or similar trim line).

See also: https://www.reddit.com/r/typewriters/comments/1waweej/what_typewriter_is_olavi_virta_using_in_this_photo/