This pattern is titled “Gansey with Cables and Pattern Stitches in Vertical Panels” in the 1985 edition of Knitting in the Old Way.

See also the Old Way Gansey by Ann Budd and The Gansey in Handspun by Gibson-Roberts published in Knitter’s Magazine.

This pattern uses a percentage system to calculate the sweater’s size from the knitter’s personal gauge.

Note that the center panel on the green sample is from another book. It can be found on page 54 in The Pattern Library: Knitting, Amy Carrol, Editor.