B66-543 COMBINATION DADO, RABBET AND FILLETSTER PLANE. Jensen Patent. Patented by Conrad Jensen of Boston in 1872 and manufactured (briefly) by J.H. Lamb. Two beech bodies with boxwood screw arms and nuts. One body has a sliding filletster fence and skew iron, the other has a boxwood plow skate and adjustable nickers. One of those wacky gizmos that were irresistible to nineteenth century inventors but all too resistible to Joe Carpenter, and as a result very rare. Some small chips in the threads and a couple of largish chips from the filletster fence and some overall wear; missing the thumbscrew that locks the nickers. In a user made wooden box with wear and several chips. Good 600-1200