About 40 volunteers worked under the expert supervision of archaeologists in the past days in Nová Baňa to reveal the bases of a unique Potter atmospheric steam engine, the first of its kind on the European continent.
The atmospheric steam machine was located in the Althandel shaft and was used in the 18th century. Enthusiasts from the Novobanský mining association decided a while ago to reveal this treasure to the public, hidden in the garden of one house.

Matej Styk, an expert assistant from the Department of Archaeology of the Constantine the Philosopher University in Nitra, said that two-week research followed last year's findings of the archaeologists. Its aim was to research the discovered construction and the discovered features, proving mining activity in the 18th century.