Harrington & Richardson Topper 58, 20 ga. single shot top break shotgun.  Serial #NSN.  Very good condition.  3" chamber, fixed MOD choke.  28" plain barrel has a very good bore, bead front sight.  90% blue finish on the barrel with some fading and light peppering.  Case colored receiver is good with some fading to the color.  Smooth wood forearm and stock are in very nice condition.  Limb Saver black rubber butt pad.  13 1/4" LOP.  C&R OK