A rare German calculator from Trunks Brunsviga with serial no. 37100 printed on the front.
Model B (probably from about 1912) fitted with a wooden base and cover, or a cast-iron base with rubber feet.
This version includes a rotor quick-clearing mechanism operated by the large wing nut on the left-hand end. The tens-carry mechanism extends across all 13 places. The machine has safety interlocks between the setting rings, the rotor and carriage positions, and the clearing levers. Decimal point indicators are provided on the registers, but carriage positioning is still entirely manual.
Key is missing.
Very good condition with a crack in the wooden base, please see pics
- Good condition - used with small signs of aging & blemishes
- 12×17×32 cm