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.

WW - WOOD IS WORSE FOR THE PERCENT FINISH RATING GIVEN

German "crown/B" and "crown/U" proofs (1890s-1930s).

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.