Machine gun pillbox

"...at night of December, 22 ... the enemy battery began direct bombardment of mascine gun pillbox near to 300 meters to the west of Patoniemi caponier. Soon ... the pillbox was smashed by direct hit."
Vinterkrigets Taipale, B. G. Geijer
(translate by Bair Irincheev)

The embrasure of that pillbox is seen on the picture. Nowadays it ruined completely.