Artifact Details Title Lawrence slide rule Catalog Number 102627851 Type Physical object Manufacturer Lawrence Engineering Service Place Manufactured Peru, Indiana, US Identifying Numbers Other number 10-B Dimensions overall: 1 1/4 in x 10 3/8 in x 3/8 in Description Wooden slide rule with white paint on surface - scales printed on the paint. Various tables and mathematical formulas printed on the back. Category Pre-computer/slide rule