OD - VERY GOOD- all original parts; none to 30% original finish; original metal surfaces smooth with all edges sharp; clear lettering, numerals and design on metal; wood slightly scratched or bruised.

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.

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

NA - NEW- all original parts; 99% or more original finish.

OB - EXCELLENT- all original parts; over 80% original finish; sharp lettering, numerals and design on metal; unmarred wood.