Temporary suspension of EU shipping, view details here.

'Numeric Demonstrator', c 1900.

Richardson, Claire

'Numeric Demonstrator', c 1900.
3 4 c m
actual image size: 32cm x 26cm


This elementary arithmetical teaching apparatus, patented by Ethel Linay in about 1900, consists of ten wooden rods with squared paper pasted on them in order to show multiplication visually.

Image Details

Image Ref.

© Science Museum / Science & Society Picture Library

buy a print

Select size
Select finish
How many prints?

buy a framed print

buy a canvas

buy a framed canvas