Maybe someone who knows more about this can refresh my memory -- as I recall, at some point, Miller started doing thumbnails for Daredevil, and Janson did pencils and inks on a separate piece of paper. As I recall, on later pages that Frank did pencil, he put some kind of mark on them, like his initials or something.
Did Frank touch this page? Or did he do a separate thumbnail that Janson then drew?
http://www.comiclink.com/auctions/item.asp?back=%2Fauctions%2Fpreview.asp%3Fcode%3D
Updated once again. Thanks to Gene Park and Michael O'Halloran (MikeyO) for the additional thoughts and references.
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On the comicart-l and the CGC OA board, we had a long conversation on the topic of the work split on the Miller DD run. This write-up is based on e-mails and posting from many people. Foremost among them are: Mitch Itkowitz, Ferran Delgado, Gene Park (notes on 158, 162, 163, 179-180), and Mike O'Halloran (Theory on 182-184).