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Image
Has Image
4
Non-Commercial Use
4
Category
Mathematics
4
Maker
Cosmiroid England; Perry, E. S.
1
Edmund S Perry
1
Montessori Centre International Limited
1
Object type
teaching aids (mathematical)
4
Place
England
2
England, United Kingdom
1
London
1
London; England
1
Material
complete
4
plastic
2
wood
2
card
1
metal
1
nylon
1
steel
1
Date
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To
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Centicubes with board, 1972-1975.
1972-1975
Diene's multi-base arithmetic blocks, 1960-1965.
1960-1965
Introduction to Decimal Quantity', teaching aid, 2000.
2000
Number balance 1980-1985
1980-1985
