A weighing scale 9, wherein said {TAIL ~ side wall} is {HEAD ~ frusto conical}, narrowing inwardly 
A weighing scale 9 , wherein said { TAIL ~ side wall } is { HEAD ~ frusto conical } , narrowing inwardly
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH