Name: Efzet - Calculator - 1930-1940 - Mechanical calculator
Brand: Efzet

Francisco Álvarez

Vintage Typewriter & Calculator Auction

Rare pocket mechanical calculator EFZETT with original manual and stylus – Germany, circa 1930-1940

Description
Rare EFZETT pocket mechanical calculator, manufactured in Germany in the 1930s-1940s.

This small device allows you to perform additions and subtractions using a provided metal stylus. It stands as a fine example of portable mechanical calculators used before the advent of electronic calculators.

The item is sold with:

- its original leather-covered case/carton with fabric finish,
- its original metal stylus,
- its user manual in German titled "Anweisung für die Bedienung des Rechenapparates EFZETT".

Dimensions
Closed: 12 × 7 cm
Open: 14.5 × 12 cm
Weight: about 15 g

Condition
Beautiful overall condition for its age.
normal wear on the cover,
original manual complete with folding marks,
complete mechanism,
readable inscriptions,
stylus present.
(See photographs which are an integral part of the description.)

Rare calculateur mécanique de poche EFZETT avec notice d'origine et stylet – Allemagne, vers 1930-1940

Description
Rare calculateur mécanique de poche EFZETT, fabriqué en Allemagne dans les années 1930-1940.

Ce petit appareil permet d'effectuer des additions et des soustractions à l'aide d'un stylet métallique fourni. Il constitue un bel exemple des calculateurs mécaniques portatifs utilisés avant l'apparition des calculatrices électroniques.

L'exemplaire est vendu avec :

son étui/cartonnage d'origine recouvert de toile,
son stylet métallique d'origine,
sa notice d'utilisation en allemand intitulée "Anweisung für die Bedienung des Rechenapparates EFZETT".
Dimensions
Fermé : 12 × 7 cm
Ouvert : 14,5 × 12 cm
Poids : environ 15 g

État
Bel état général compte tenu de son ancienneté.
usure normale de la couverture,
notice d'origine complète avec traces de pliage,
mécanisme complet,
inscriptions bien lisibles,
stylet présent.
(Voir les photographies qui font partie intégrante de la description.)

This estimate helps guide you when bidding. It’s carefully calculated based on demand, quality, rarity, and ownership history. We can't guarantee the object will sell, resell, or appraise for this amount.

Efzet - Calculator - 1930-1940 - Mechanical calculator

In working order - Good condition - used with small signs of aging & blemishes - Paper, Metal

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In working order

Efzet mechanical pocket calculator from 1930–1940, in good condition with some wear for its age, includes original manual and metal stylus, made of paper and metal, and weighing about 15 g (closed 12 x 7 cm, open 14.5 x 12 cm).

Efzet - Calculator - 1930-1940 - Mechanical calculator

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Efzet mechanical pocket calculator from 1930–1940, in good condition with some wear for its age, includes original manual and metal stylus, made of paper and metal, and weighing about 15 g (closed 12 x 7 cm, open 14.5 x 12 cm).

Description from the seller

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