In 1846 Staffel's machine was shown at an exhibition in St Petersburg and received with high regard and he received the prestigious "Demidov Prize".
It obtained a very positive opinion and he received a very prestigious "Demidov Prize". In 1846 Staffel's machine was shown at an exhibition in St Petersburg.
In 1846 Staffel's machine was shown at an exhibition in St Petersburg. It obtained a very positive opinion and he received a very prestigious "Demidov Prize".
In 1846 Staffel's machine was shown at an exhibition in St Petersburg. It obtained a very positive opinion and he received a very prestigious "Demidov Prize".