NF - FAIR- 0% - 40% with generally smooth finish, may have mild cleaning yet not deeply pitted, but well worn, replacement of minor parts may need mechanical adjustments, may have rust and may have corrosion pits which do not render article unsafe or inoperable. In working condition. Wood condition commensurable with percent of finish with dings and dents associated with 0% - 40% gun.

ND - VERY GOOD- in working condition, 80% finish or better, appreciable wear on working surfaces 80% - 89%, no corrosion or pitting, minor surface dents or scratches. Wood condition commensurable with percent of finish with dings and dents associated with 80% - 89% gun.

NPRF - NON-PROFESSIONALLY REFINISHED/COLD BLUE, ETC.