With the first and second level mats so assembled, the lower fingers F2 of the second level face {HEAD ~ mat} extend behind {TAIL ~ the transverse wire} 39 and over and to the front of the transverse wire 38 of the first level face mat  
extend behind
With the first and second level mats so assembled , the lower fingers F2 of the second level face { HEAD ~ mat } extend behind { TAIL ~ the transverse wire } 39 and over and to the front of the transverse wire 38 of the first level face mat
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH