{HEAD ~ Substantially all} of {TAIL ~ the functional coating} is removed from a peripheral region of the first major surface while substantially all of the functional coating is simultaneously removed from a peripheral region of the second major surface 
{ HEAD ~ Substantially all } of { TAIL ~ the functional coating } is removed from a peripheral region of the first major surface while substantially all of the functional coating is simultaneously removed from a peripheral region of the second major surface
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 OTH OTH OTH OTH OTH OTH OTH OTH