A harrow is a farming tool for breaking up and smoothing the soil of a field; it’s dragged flat across the field, sometimes weighted with stones. It’s a period charge, found in the arms of de Calchatera, mid-15th C. [Triv 93], and the canting arms of Harrow, 1610 [Guillim1 202]. The harrow is palewise, with the yoke for the rope to chief, by default.
Loxley of Côte du Ciel bears: Or, a wooden harrow proper and a chief enarched azure.