Figure 11. Thatching needle: a, upper surface view; b, side view. 1, notch point, used for puncturing thatch sheet; 2, notch, hooks up braid and draws it back through sheet; 3, upper surface, concave longitudinally and fairly flat transversely; 4, unnotched point, may be used in sewing sheet together; 5, lower surface, convex transversely, side edges rounded off. Length, 11 inches; mesial width, 1.2 inches; mesial thickness, 0.4 inch; notch point, 1.2 inches long; base of notch point, 0.7 inch wide and 0.4 inch thick; other point at same distance (1.2 inches) from end, only 0.2 inch thick; notch, 0.3 inch deep.