The notch forms a finger portion on the temple with the outside surface of the temple, and also creates a thinned wall section at {HEAD ~ the inner surface} of {TAIL ~ the temple} opposite the finger portion 
of
The notch forms a finger portion on the temple with the outside surface of the temple , and also creates a thinned wall section at { HEAD ~ the inner surface } of { TAIL ~ the temple } opposite the finger portion
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH