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Your bentwood rocking chair would have been produced in the early 20th century, circa 1920's. The Rocker, which appears to be maple, has reminence of a dark finish, which you can see has faded at the hand rests from use. In excellent condition the bentwood Windsor style rocker would have a current resale value of $150-$175. I do not see any damages to the piece from the photo, but if there are any structural issues with the blades or the legs, this would detract from the resale value.
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