The base 22 is in the form of a hollow body 26, and {HEAD ~ the anvils} 24 are operatively positioned within the hollow interior of {TAIL ~ the base body} 26 
The base 22 is in the form of a hollow body 26 , and { HEAD ~ the anvils } 24 are operatively positioned within the hollow interior of { TAIL ~ the base body } 26
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH