Josh, These ghost images came about when a foundry, in this case Favorite, acquired a pattern from another company or made a pattern using another foundries piece as the "master". The original foundries name was filled in on the pattern but it was never done just perfectly. The result was every time a mold was made and a piece cast from the filled in pattern, a faint image or "ghost" appeared on the finished piece as a result of the inability to perfectly fill in the original foundries name on the master pattern. Hope this makes sense.
Harry