Brunsviga, size A calculating machine, c. 1910, by Grimme, Natalis and Co., Braunschweig, Germany on wood base and locking wooden cover. Supplied by Block & Anderson limited, London.
Brunsviga, size A calculating machine, c. 1910, by Grimme, Natalis and Co., Braunschweig, Germany on wood base and locking wooden cover. Supplied by Block & Anderson limited, London.