This installment is entitled "Tanks of the Winter War: The Soviet T-26 Family of Tanks". It contains lots of great Winter War era tank photos!
Above: Soviet T-26 tanks roll into battle. These are the 1933 model. Note that they are being employed cross country; during the earliest weeks of the Winter War the tanks were not yet employed in this manner. At the Battle of Tolvajärvi (December 8th - 12th, 1939), the Soviet tanks and armored cars remained tethered to the road network.