NC - FINE- All original finish 90% - 94% or better, some dings in wood wear commensurable with percent of finish. In working order.

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.

NE - GOOD- in working condition, wear on working surfaces, finish 40% - 79%, no broken parts, no corrosion or pitting that will interfere with proper functioning, but may have some minor surface pitting. Wood condition commensurable with percent of finish with dings and dents associated with 40% - 79% gun.