1961 Estimating Slide Rule
This is an estimating slide rule from 1961. It was used at SaskPower to determine construction costs for distribution systems, prior to the use of Construction Estimating Information software, installed in 1988. Before the use of estimating software, it took 2 to 4 hours to calculate costs of distribution construction. Estimating software required only 10 to 15 minutes to complete.
1 physical item
Three dimensional object
Photo provided by and is the property of SaskPower.