TitleCircular slide rule
DescriptionObject is a circular clide rule referred to as a "Binary Slide Rule" in the accompanying manual sent to archives.
|Other number||C21||Donor's ID number for rule|
Dimensionsoverall: 8 3/8 in x 9 5/8 in x 5/8 in
CreditGift of Mike Konshak
|102731093||Case for a circular slide rule|