{TAIL ~ This upper mould half} also forms {HEAD ~ the spring well} and contains a removable core plug 
{ TAIL ~ This upper mould half } also forms { HEAD ~ the spring well } and contains a removable core plug
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH