Title
Modern Math Addition mechanical flash card systemCatalog Number
B231.82Type
Physical objectDescription
Childrens toy -looks like a mechanical adding machine - pull handle and you get three addition problems to solve.Date
undatedManufacturer
WolverinePlace Manufactured
U.S.Dimensions
4 x 6 x 7 in.Category
GameCollection Title
Gwen Bell artifact and book collectionSeries Title
Pre-computing artifactsCredit
Gift of Gwen and C. Gordon BellLot Number
X6288.2012