#head.obverse  (usually plural) an obverse side of a coin that bears the representation of a person's head; "call heads or tails!"
  exclusion:  tail.reverse
  supertype:  obverse.side  the side of a coin or medal bearing the principal stamp or design
  part of:  coin  a metal piece (usually a disc) used as money

No statement uses or specializes head.obverse; click here to add one.