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.

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.

PRF - PROFESSIONALLY REFINISHED OR RESTORED

Manufactured in 1929.

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.

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

Manufactured in 1903.

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.

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

WB - WOOD IS BETTER FOR THE PERCENT OF FINISH RATING GIVEN

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.

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

WW - WOOD IS WORSE FOR THE PERCENT FINISH RATING GIVEN

Introduced in 1917.