Before the war, the prisoners were buried in coffins hurry-scurry hammered together, bur in the war years the number of goners increased to an extent that resulted in the invention of a so-called hearse - a box on wheels where they laid naked corpses in pairs.
The irony of fate: the craftsman who invented the hearse died on feet and ended up in one of the first rounds.
In 1947, they again started bringing the dead in coffins from which the corpses were however dumped into mass graves.