john , now that is is a done deal and gone , the corner tang i had was a g10 and was a surface find , it was by his admission the thinnest worked and most unnusual form he had seen , im not saying the best he had seen , but that blade is now in winstons personal collection , so as lacking in knowledge as i am about the subject , i would have to say that i think there are still g 10 surface finds , and im gonna go find em lol ,
Flo is living proof of the G-10 concept, See his latest post " RIVER FINDS 2-21-09".
Also, when your talking " G-10 ", most of us use that designation if we find a whole point but I'm thinking when it comes right down to the professional designation its really tough to get a high rating.
Factors like material , color [ white sun burned ? ]
flaking quality and "design" of that particular style
come into play.
A true G-10 can be found on the surface or under it or underwater or anywhere for that matter. But it's a qualified authenticator who's willing to give it a grade or just a qualified grader, which have started popping up in th last couple of years. I'm not sure how one becomes either, except by experience but I think there are some types of certification programs available that have recently come about. Would make a good article for Texas Cashe magazine though.
in addition to no dings, and i mean absolute zero(tip,ears,base,etc.). for a point to be even considered G10 in must have near perfect symmetry, flawless workmanship, above average material. i have been told i am to picky though.
oh yeah, and for a point to labeled G10+ in simply needs to be the highest quality example known. period!