Finely Carved Bone Crossbow Tiller, Continental, 19th Century Consign Now Dept19th Century ScrimshawSizeHeight 15 in. Finely Carved Bone Crossbow Tiller, Continental, 19th century, likely created as a cabinet piece and not the tiller (or stock) of a working crossbow, it is sculpted in bas relief with mythological vignettes of battling centaurs after Mantegna Height 15 in. Please note that this auction has ended. Click here for an overview of this auction.