The gardener's magazine and register of rural & domestic improvement (1826)
Loudon, J. C. (John Claudius), 1783-1843, A. & R. Spottiswoode, printer, United States. Patent Office. Scientific Library, former owner DSI · London : Longman, Rees, Orme, Brown and Green · leaf 312
in the common wooden mole-trap; only that the grooveson the upper side of this one are cut quite through, having asmall nail or pin of wire driven in through the middle, tokeep the wires from rising above the wood. In the upperside of the hole, close by the grooves, three blunt-pointedpikes of wire… … lower side, opposite each trigger-hole, is a small piece cutout, as in the common trap. The springs are made of iron
