Figure 80. Ruvettus hook with pearl shell point: a, wide U-shaped crotch of point limb and shank limb; b, pearl shell point; c, scarf joint of point and point limb from outside; d, continuation of shank leg from a; e, outside view of upper end of shank leg showing knob and narrowing of upper end. 1, shank limb, 7.8 inches long inside to crotch, diameter at lower end from within out is 0.9 inch and opposite diameter is 0.8 inch, at upper end in a (4 inches from lower end) diameter is 0.55 inch, and just below knob diameter is 0.4 inch; 2, point limb, 3.9 inches long to crotch, where diameter same as that of shank limb; 3, wide U-shaped crotch, depth is 2.3 inches, outside width on level of crotch is 2.8 inches and thickness is 1 inch; 4, rounded angle; 5, deep scarf of point limb, 1.6 inches long, diameter at lower end is 0.45 inch from without in and 0.5 inch in opposite direction; 6, point, height from lower end to top of curve is 2.3 inches, width from point to outer line of lower limb is 1.7 inches, pearl shell is 0.4 inch wide and slightly less than 0.2 inch thick at lower end; 7, rectangular cut 0.2 inch deep at lower end of point limb scarf; 8, chip 0.85 inch long placed in scarf joint to make outer surfaces of limb and point flush; 9, knob, outer point of knob is short, slightly concave slope to upper end of shank limb, knob is 0.9 inch long from upper end to lower notch; 10, notch, 0.2 inch deep.