INDIAN STONE PESTLE FOUNDPoitland, March lt;.—(AP)—AIndian stone postl*- which the Maine Historical society said was more than 300 years old had been found today on Peaks Island, in Casco Pay, by Gustave Cat Ison.The 20-pound stone, 2Vfe feet long, was found on the sit** where Peak* Island whi'e settlers were massacred in an Indian attack in1075.The Histori il iet y Raid tpestle, which may have bet n usedas a war club, v a. carved by some |tl member of a tribe? that roamed the Northwest at that time. The handle is carvelt;l to represent the head ol a beaver. Carlson said he unearthed it four feet below tin- surface.