The cardboard attempt was a total failure. So I tried the method as shown by the author of building of a Pennsylvania long rifle. (If I go into the bed room for that book the cat will wake up.) I wound up with too many optional lines drawn. It is as easy as tracing the outline of a greased BB onto the surface of a large marble. So this Christmas day I bought an eraser. The "Vintage" Maples Bow saw is now completely functional, but has the original 12 inch blade. There is a bundle of about five for sale in England, but...