{TAIL ~ This gauge} has {HEAD ~ a pair} of cylindrical sleeves 41 and 42 that are shown in ion 
{ TAIL ~ This gauge } has { HEAD ~ a pair } of cylindrical sleeves 41 and 42 that are shown in ion
TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH