BASE PLATE FOR DUMMIES

As outlined by historic texts, the inch was 1st identified from the 7th century as a means of assessing wound depth. Its first Formal definition dates from 1324 – 3 grains of barley, dry and round, placed end to finish, lengthwiseBackground/origin: The time period "inch" was derived from the Latin device "uncia" which equated to "a single-twelfth