Fourth, T-Housing pictures. Look at picture # 1941. There is a cane (with two dots on either side) shaped marking on the hammer, near it's bottom. Anyone else have this marking on one of their hammers? What does it mean? Is it a greek letter or something? To me it looks like a masonic symbol, "Tubalcain". (look that up and see if it looks like this to you?) I read that these markings were worked into some of the firearms in WWII?