Box 1 (A and B) from Arithmetical teaching aid, "A. Sonnenschein's Improved Arithmometer", made by George Philip and Son, London and Liverpool. On the top of the lid is the sentence 'No. 1. B. (100)' at the very top. Adolf Sonnenschein's 'Arithmometer', late 19th century. late 19th century
Box 2 from Arithmetical teaching aid, "A. Sonnenschein's Improved Arithmometer", made by George Philip and Son, London and Liverpool. Adolf Sonnenschein's 'Arithmometer', late 19th century. late 19th century
2 plastic wallets containing cards from 'Perfect Times', a set of numbered cards to aid multiplication and division 'Perfect Times' learning aid 2001
'Perfect Times' a set of numbered cards to aid multiplication and division 'Perfect Times' learning aid 2001
Three sets of prototype cards for the 13, 14 and 17 times tables Three sets of prototype cards for the 13 2001