Authentic mechanical calculating machine from the famous brand Brunsviga, model

13Zk, with serial number 2088475.

This historic mechanical calculator, made in Germany ("Brunsviga-Maschinenwerke Grimme, Natalis & Co. AG"), is an emblematic model of 20th century technical know-how. With its sturdy metal structure and timeless industrial design, it is a superb collector's item ideal for lovers of old scientific objects, mechanography or for vintage and authentic office decoration.

Technical Characteristics:

Brand: Brunsviga

Model: 13ZK

Serial number: 2088475 (visible on the front as well as under the chassis)

Mechanism: Lug wheel system (Odhner type), entirely mechanical operation by adjustment levers, main crank and zeroing sliders.

Aesthetic and mechanical condition:

Front & Sides: Good general aesthetic condition. The original black lacquer paint has a superb patina with some natural age fading on top, giving it a unique historic charm. The engraved brand and model inscriptions are perfectly clear.

Mechanism: The device is complete. The side operating crank with its wooden handle turns fluidly, the selection levers slide correctly and the mobile carriage moves without blocking.

Base: The machine sits securely on its original rubber feet

Professional packaging: Heavy and mechanical object. Particular care will be taken in the preparation of the package (use of double-corrugated cardboard, reinforced cushioning with quality cushioning materials and thick bubble wrap) in order to guarantee total protection during transport.