N is Newer Rating – 1930s or Newer O is Older Rating – 1930s or Older
- NA - NEW- all original parts; 99% or more original finish.
- NB - EXCELLENT- near new condition 95% - 98%, used but little, no noticeable marring of wood or metal, bluing near perfect (some wear at muzzle or sharp edges can be expected).
- 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.
- 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.
- NG - POOR- major or minor parts replaced; major replacement parts required and extensive restoration needed; metal deeply pitted; principal lettering, numerals and design obliterated, wood badly scratched, bruised, cracked or broken; mechanically inoperative; generally undesirable as a collectors firearm in its present state. Finish obscured by heavy cleaning, rust or corrosion.
Older Condition Rating (1930s or older)
- OA - FACTORY NEW- all original parts; 100% original finish; in perfect condition in every respect.
- OB - EXCELLENT- all original parts; over 80% original finish; sharp lettering, numerals and design on metal; unmarred wood.
- OC - FINE- all original parts; over 30% original finish, sharp lettering, numerals and design on metal and wood; minor marks in wood.
- 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.
- OE - GOOD - some minor replacement parts; metal smoothly rusted or lightly pitted in places, cleaned; principal lettering, numerals and design on metal legible; lightly scratched, bruised or minor cracks repaired; in good working order.
- OF - FAIR- some major parts replaced; minor replacement parts may be required; metal rusted, may be lightly pitted all over, vigorously cleaned; rounded edges of metal and wood; principal lettering, numerals and design on metal partly obliterated; wood scratched, bruised, cracked or repaired where broken; in fair working order or can be easily repaired and placed in working order.
- OG - POOR- major or minor parts replaced; major replacement parts required and extensive restoration needed; metal deeply pitted; principal lettering, numerals and design obliterated, wood badly scratched, bruised, cracked or broken; mechanically inoperative; generally undesirable as a collectors firearm in its present state.
- PRF - PROFESSIONALLY REFINISHED OR RESTORED
- NPRF - NON-PROFESSIONALLY REFINISHED/COLD BLUE, ETC.
- WB - WOOD IS BETTER FOR THE PERCENT OF FINISH RATING GIVEN
- WW - WOOD IS WORSE FOR THE PERCENT FINISH RATING GIVEN
Some items may have “dual” codes. For example 90% professional reblue (newer) would be the code NC-PRF.