0 0 This article was originally published with the title “Starrett's Patent Combination Square” in SA Builders Vol. 3 No. 3build (March 1887), p. 51 doi:10.1038/scientificamerican03011887-51abuild ...

This article was originally published with the title “Starrett Combination Squares Graduated with Metric Measure Now Available, Improved Universal Bevel Protractor Added to Starrett Line” in ...