Brunsviga manual calculator model B 13RM ser.no.16459 by Olympia Werke AG, Wilhelmshaven but made in Spain. Brunsviga manual calculator model B 13RM ser.no.16459 by Olympia Werke AG Mathematics 1965-1975
Key operated model 16T Brunsviga mechanical calculating machine by Brunsviga Maschinenwerke AG Mathematics 1950-1955
Model M Trinks Brunsviga calculating machine on wooden base by Grimme, Natalis and Co., Braunschweig, Germany. Model, of M Trinks Brunsviga calculating machine on wooden base Mathematics 1908-1914
Model D18R twin Brunsviga calculating machine (18 register) by Brunsviga Maschinenwerke AG Mathematics 1955-1965
Triumphator Calculating Machine and cover, manufactured by Triumphator Company Limited Triumphator Calculating Machine and cover Mathematics 1945-1965
"Matador" calculating machine c.1910, by Grimme, Natalis and Company, Braunschweig, Germany "Matador" calculating machine c.1910 Mathematics 1910-1915
Model M Brunsviga calculating machine, c. 1910, sectioned (cover plates missing) with separate wheels mounted in plastic to show workings. Model M Brunsviga calculating machine Mathematics 1908-1912
Model M Trinks Brunsviga calculating machine on wooden base with metal cover by Grimme, Natalis and Co., Braunschweig, Germany. Model M Trinks Brunsviga calculating machine on wooden base with metal cover by Grimme Mathematics 1930s
