making a scratch on {HEAD ~ at least one corner} of the panel portion of {TAIL ~ the cathode ray tube}, said scratch being substantially parallel to an interface between said panel portion and a funnel portion of the cathode ray tube 
making a scratch on { HEAD ~ at least one corner } of the panel portion of { TAIL ~ the cathode ray tube } , said scratch being substantially parallel to an interface between said panel portion and a funnel portion of the cathode ray tube
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH