Thought I'd stop by and comment in your blog. Is the title intended for a discussion on that topic or just your generic title for your blog? Well, I'll assume the former and post an old thread I made on CT that I think is relevant: http://www.cointalk.com/forum/t44472/ I paid some tuition and am sure I'll stumble again in the future. In any case, I believe that coin doctoring is more prevalent than many collectors realize.
