The tamper indicating closure 7 wherein said {HEAD ~ scalloped recesses} are {TAIL ~ arcuate recesses} 
The tamper indicating closure 7 wherein said { HEAD ~ scalloped recesses } are { TAIL ~ arcuate recesses }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL