Older 50's to early 60's supers had the long tang on the bottom. On a flat or square knob trap gun the end of the lower tang extends to within a 1/4" of the edge of the grip. It was also spear pointed in shape. The newer 70's supers had a short tang that only extended an 1" or so behind the trigger guard. Same as my 12 ga lightning citori. Maybe off a 101?..mb
