Brunsviga D13 - Z18 - Calculator - 1940-1950 - Working model

05
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Current bid
€ 100
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Francisco Álvarez
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Selected by Francisco Álvarez

Acquired extensive antiques knowledge through renovation works and running own antiques shop.

Estimate  € 280 - € 350
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deBidder 0630 €100

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A working Brunsviga D13 Z18 double pinwheel calculator from the 1940s, built in steel with Bakelite parts, showcasing full tenage carry and historic mechanical precision.

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Description from the seller

A special double calculator is available! The Brunsviga 13 Z 18 (or D 13 Z 18) is a mechanical calculator, a so-called 'pinwheel calculator' (cylinder calculator), produced by the German company Brunsviga Maschinenwerke (formerly Grimme, Natalis & Co). It was colloquially also called the 'steel brain' (Gehirn von Stahl). The letter D stands for Double, and Z for Zehnerübertragung, meaning that this machine could perform a full decimal transfer in a very advanced way for its time, namely a complete carry-over in the revolution counting mechanism. A beautiful and historic item that is very rare and not often offered.

Overall, these machines were compact enough to move around, but heavy enough to stand stably on a desk during intensive use, which is typical of the durable, fully metal construction from that period.

Hopefully, this special machine will find a new owner who recognizes its historical and cultural value.

A special double calculator is available! The Brunsviga 13 Z 18 (or D 13 Z 18) is a mechanical calculator, a so-called 'pinwheel calculator' (cylinder calculator), produced by the German company Brunsviga Maschinenwerke (formerly Grimme, Natalis & Co). It was colloquially also called the 'steel brain' (Gehirn von Stahl). The letter D stands for Double, and Z for Zehnerübertragung, meaning that this machine could perform a full decimal transfer in a very advanced way for its time, namely a complete carry-over in the revolution counting mechanism. A beautiful and historic item that is very rare and not often offered.

Overall, these machines were compact enough to move around, but heavy enough to stand stably on a desk during intensive use, which is typical of the durable, fully metal construction from that period.

Hopefully, this special machine will find a new owner who recognizes its historical and cultural value.

Details

Era
1900-2000
Title additional information
Working model
No. of items
1
Material
Bakelite, Steel
Manufacturer/ Brand
Brunsviga D13 - Z18
Condition
Good condition - used with small signs of aging & blemishes
Height
17 cm
Width
29 cm
Depth
22 cm
Weight
8 kg
Estimated Period
1940-1950
In working order
Yes
The NetherlandsVerified
229
Objects sold
Private

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