The 1970s/80s introduced garment shaping or contour devices or charting devices that provided visual pattern guides as an alternative to written instructions. . The Knitmaster version was called a KnitRadar or Knit Contour and the Brother version was called a KnitLeader.  Some knitting machines had these incorporated into the main bed, but external ones could be purchased and attached (as shown above). . A set of Pattern Contours came with the device in a range of sizes. The knitter chose the correct pattern to insert into the device. The device also included a gauge scale ruler and a set of stitch scales. A tension square was created and the gauge…