Winchester Supreme Sporting, 12 ga. over/under shotgun.  Serial #13AMZ03883, mfg. Belgium.  28” ported vent rib barrels have shiny bores, wide competition rib with twin beads.  2 ¾” chambers with two Invector Plus SKEET choke tubes.  Barrels have some internal surface corrosion in breech area.  Single selective trigger and ejectors.  Stainless steel receiver has surface corrosion on bottom of action and trigger guard.  Stock and schnable forearm have excellent satin finish and checkering.  KICK-EEZ adjustable butt plate added.  LOP is 14 ¾”.  Single selective trigger and ejectors work fine, gun locks up tightly.  An excellent competiton over/under!