Figure 178.—Adz, Type 1, short, wide, thin (c. 809);

a, front, surface well ground but a deep flake depression not entirely removed; part of sides seen; poll surface, chipped; b, back roughly chipped with marked transverse convexity resulting in curved chin, right lower corner broken; c, sides well ground, part of back seen; upward backward chipping of poll evident; d, cross sections showing thinness.