File:Abacus 6.png

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Abacus_6.png ‎(247 × 145 pixels, file size: 33 KB, MIME type: image/png)

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Deutsch: Abakus

English: Abacus

Español: Ábaco

Svenska: Abakus, Kinesisk

Scanned and uploaded by Malcolm Farmer (englische Wikipedia)

Source: Article for "abacus", 9th edition Encyclopedia Britannica, volume 1 (1875)

This image comes from the 12^th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired and this image is in the public domain.

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Horizontal resolution	28.34 dpc
Vertical resolution	28.34 dpc
File change date and time	20:23, 21 March 2002

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