Playskool' wooden toy 1960-1980

'Playskool' wooden toy, 1960-1980.
Playskool wooden toy, a wooden framework with rotating blocks bearing numbers and symbols to do arithmetic. 1960-1980. Toys to help with arithmetic were introduced from the start of the 20th century.
 
Currently on display in:
Mathematics
Year made :
1960-1980
Inventory number :
1999-1138