Pelton, A Handbook of Wrestling (1897)

Collar and Elbow Wrestling – This style originated in the English counties of Devon and Cornwall, and in England it is called by the names of those counties. As between the styles practiced in these counties, however, there are differences in detail.

The essential feature of the costume is a canvas jacket loosely laced with cords in front, or with a harness made to bring a strap across the shoulder and down to the elbow. The men take hold, each with his right hand upon the collar, at the left shoulder of his opponent, and with his left hand upon the other’s right elbow: Three points down, that is two shoulders and one hip, or two hips and one shoulder, constitute a fall.

E.R. Pelton (1897), A Handbook of Wrestling. pp. 252-253.