I have an older (according to information supplied by the old timer who sold it to me) Star boolit sizer that is in really great condition. No difficulties whatever. Just noticed today that the handle has stamped next to the wood on the steel that is crimped to the wood the following: Lutz File & Tool Co., Cinci., Ohio. Would this be a way to date some of these Star Sizers or are they all alike? Mine has the San Deigo stamp on the base. Big Boomer