Title
Horse-Meter circular slide ruleCatalog Number
B190.81Type
Physical objectDescription
Circular Slide Rule used for Horse Racing.Date
1951Manufacturer
Ideas Unlimited, San DiegoPlace Manufactured
Calif., U.S.Dimensions
1/4 x 5 1/4 x 5 1/4 in.Category
Pre-computer/slide ruleCollection Title
Gwen Bell artifact and book collectionSeries Title
Pre-computing artifactsLot Number
B190.81