This reminds me of a great story on America's Antique Roadshow about this Poe daguerreotype (illustrated) that came in for appraisal on the show. Purchased for $96 in Walnut, Iowa it was appraised at $30,000 - $50,000. However, it was a find too good to be true and became more complicated once the FBI became involved. Read the story on the Roadshow website here.