Craig's system was very well thought out but never caught on although it was capable of a more detailed description. Probably, because it still came back to the judgment of the person assigning the rating .... just like the system in common use now.
Both present the same challenges:
- Sellers maximize the rating and that is true of any collectible or any used item. Buyers should expect that and make their own decisions.
- A dagger is a complex item. An early SS dagger knife has 7 pieces and the scabbard has 10 visible pieces. Collectors put emphasis on different components. One may be a blade man so a beautiful blade overshadows a ding on the grip. Etc,etc.
- There is little differentiation between the effects of wear and those of age. A late war dagger may show no wear but have suffered from the deterioration of zing parts or peeling on cheaply plated parts or cracking.
My approach is to use ratings as a indicator only. I make up my mind with the item in my hand. If I am looking at pictures, I only buy if there is a "no questions asked" return policy where I can send the item back as long as I pay postage and insurance both ways.
In my mind here is how I rate daggers:
1. A real gem. few signs of wear or age. I will buy it even if I already have that maker.
2. Great dagger. Small signs of wear and age. I will certainly buy it if I do not have one and might buy it as a duplicate if I already have one.
3. Run of the mill decent dagger showing wear and age. I'd only buy it if it was hard to find and I did not have one.
4. Below average dagger showing age wear and problems. Maybe mixed parts. I've never bought one of these.
5. Lab Rat. Beat up, broken or missing parts. Good only for experiments. I had three of these purchased long ago to experiment on. I gave one without a scabbard to Paul Horton's son and have the other two.
The only exception would be design variations, prototypes, or similar things. There, you hold your breath and punt
Dave