Tatra is a vehicle manufacturer in Kopřivnice , Czech Republic.
Some photos through Google Images
The first truck manufactured at Kopřivnice in 1898 was a flatbed with 2 liquid cooled side by side mounted two cylinder Benz engines each at 2.7 L capacity with total power output of 8.8 kW (12 hp) placed after the rear axle and cargo capacity of 2.5 ton.
There is a ton of information and lots of photos on the Google Images for Tatra
and the Tatra Museum.