Rockers first made an appearance in the late 18th century; that is windsors whose rocker rails were born with the chair itself. Prior to that, rockers were made from existing chairs that were modified to accept a rocker. The distinguishing detail of a “born” rocker is that the bottom of the leg turning would be made in a cylinder so that the mortise for the rocker rail would have plenty of wood around it in order not to break. Windsor rockers were made in many of the styles of windsor armchairs although comb-backs seem to have been the most popular.
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