The mould can be made in {HEAD ~ two halves}, with {TAIL ~ a side mould piece} 
with
The mould can be made in { HEAD ~ two halves } , with { TAIL ~ a side mould piece }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL