Abacus Counting Boards (0805)

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Index: 0805


Year: ?


Maker: ?


Dimensions: 8 x 1 x 5 cm

Info

Small counting boards. No idea for what exactly they were used.

References/Links/More Info

Images

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Silver Balance Berbers (0850)

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Slide Rule Faber Castell 1/87 System Rietz (0802)