World map with names in Finnish.
The text in the lower left corner of the map says “Maapallon valtiollinen kartta (Mercatorin projektsioni) Ekvaattorinn mittakaava 1:100,000,000”, which means world map in Mercator's projection, map scale at the equator is 1 to 100 million. The equator on the printed map measures 395 mm (0.395 meters, 15.5 inches, should be 4650 pixels since it was scanned in 300 dpi resolution), so this appears to be correct.
<a href="https://en.wikipedia.org/wiki/Pieni_tietosanakirja" class="extiw" title="en:Pieni tietosanakirja">Pieni Tietosanakirja</a>
between 1925 and 1928 <div style="display: none;">date QS:P,+1925-00-00T00:00:00Z/8,P1319,+1925-00-00T00:00:00Z/9,P1326,+1928-00-00T00:00:00Z/9</div>
From a 1925-1928 encyclopedia, "Pieni Tietosanakirja", now in the public domain. Scanned in 300 dpi by Lars Aronsson, 2005. This map is also available at <a rel="nofollow" class="external free" href="http://runeberg.org/pieni/2/0791.html">http://runeberg.org/pieni/2/0791.html</a> (which explains the somewhat cryptic filename).