In the late 1960’s, Joseph Lonewolf began using the sgraffito technique on his pottery. This technique was also used by his father, Camilio Tafoya, and sister Grace Medicine Flower. Using the tip of a pocketknife blade, he began to lightly scratch away the surface of the clay, creating precise animal designs. Using different amounts of pressure, he was able to create various effects on his pots. The pots are fired outside, in the traditional manner. Joseph signed each piece, and assigned a serial number to the bottom.