Manual cash registers, commonly used in cafes, bearing the words "Brunsviga Braunschweig Kastanienallee". The Brunsviga factory located in Kastanienallee city, Germany specialized in the production of mechanical calculators for the world market, and it was very successful since 1892. It was a famous calculator all over the world at that time. It was until 1957 that the development of electronic calculators made it no longer relevant.