Others > Others
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Consul the Educated Monkey
Consul, The Educated Monkey (ca 1920)
Dayton, Ohio, USA
dimensions...........14 x 15,5 x 1 cm
weight..................120 g
material................tinl
This item is a remake from DBS (Germany) ca 2005. -
Optima
Optima
Dr,. Albert Rauff, Berlin-Halensee, Germany.
dimensions.............22 x 25 cm (wooden bottom)
radius.....................10 cm
material....................aluminium -
Discomath
Discomath, Tables (Belgium)
radius.....................6 cm
material....................cardboard -
Genaillebones
privat remake
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Napierbones
privat remake
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Darnley's
Darnley's Patent Portable Lightning Calculator
Pencil Case, Ruler & Measure (England)
dimensions.............23,5 cm
radius.....................1,5 cm
material...................metalFOR SALE
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De Kleine Rekenmeester
De Kleine Rekenmeester
JB Wolters, Groningen, The Netherlands
dimensions............19 x 5,5 x 2 cm
weight..................70 g
material................plastic
This is a combination of a counter and an abacus. including a cardboard boxFOR SALE
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Todd Protectograph
FOR SALE
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