<Reeeeach, pull, thump, leaf through pages, beading tool, see router, riffle, riffle, too far, back a bit, ah-ha!>
Coachbuilder's Router. Jigger (Side Router)
The cutters are parallel to the sole, and carried in a metal housing. The single-iron type has two hooked cutting edges fixed with two screws; the double iron (London pattern) has two separate plain cutters set at 45°, secured with thin metal wedges. Used for cutting glazing or panel grooves in frames and pillars. It began to replace the Pistol Router in the mid-nineteenth century.