I didn't mean to imply that they were incompetent. Perhaps I should have used "inexact". In my own experience as skinner, I try to use photos of the actual aircraft I'm trying to represent. On the other hand, sometimes a dated B&W picture will leave certain things open to interpretation when no supporting information is available. Then one must proceed accordingly whether they be in a museum or representing a Photoshopped facsimile in this forum.