The second official blister 2017 is devoted to Jan Bayl and contains a complete game of'euros in circulation (1, 2, 5, 10, 20, 50 cents and 1, 2 euros), as well as a commemorative medal.

Ján Bahýľ was an inventor and engineer Slovak. He specialized in military science, military construction and engineering, flying machines being one of his particular centers of interest. In 1895, he obtained a patent for the helicopter.