This picture was made of the side of a boat at the Dike Reeve's house.
In the house is an exhibition showing how the hungarians have tamed the Tisza river north of Szeged. In their rainy season the river turned huge tracts of land unuseable and even flooded the city of Szeged during some seasons. The dike works were completed during the 1920's and 1930's.
These are horisontal planks that were tarred, but left in the sun and weather for a number of years.