Excellent - Scales and tools may show little/minor wear. Tools work as designed. Blades may or may not require sharpening.
Good - Scales and tools may show normal/moderate wear. Likely has minor scratches and worn surfaces. Possibly light/minor surface rust. Tools work as designed. Blades may have nicks or other damage. May requires sharpening.
Fair - Scales and tools may show significant/excess wear. Possibly moderate/heavy rust. Tools may not work as designed. See description for issues with implements. Blades likely have nicks or other damage. Likely requires sharpening.