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