image/svg+xmlOpenclipartscoring perpendicular lines2010-04-24T14:00:10from "Wood-working Tools; How To USe Them - A Manual" published by D.C.Heath & Co. Publishers, 1896 no author listedhttps://openclipart.org/detail/51205/scoring-perpendicular-lines-by-johnny_automaticjohnny_automaticdistancemarkmarkingmeasurementtechniquetoolwoodworking