I talked to a guy at digfest who said he found a 1and 3/4 incher c tang that papered, and was the smallest Rogers had ever seen. I can't remember his name, and I didn't see the point but that was the story.
Is there still a lot of controversy on what the c tang was used for? I've heard everything from hafted knife to scraper. When they get that small, it almost defeats the purpose in hafting for a knife.