On a side note, did you know Alfred Hitchcock was scared of his own movies?
Now, back to the chair! :)
There are several types of back slats; “turtle-back,” “cut-out back slat,” - a curved back with spindles, “the pillow back”, eagles, cornucopias, plain, button back, and a crested back. The rarest of the back slats are the eagles, cornucopias, and the scrolls. About 1845, the “vase back” chair or “Urn chair” chair became popular. The wide vertical middle slat was shaped like an urn or vase. It was sometimes called “Fiddleback.” The top slats are called crest rails which are referred to as; “crown top,” “crest top,” or “pillow top.”
These chairs are identified as “New Hampshire Hitchcock,” or “Sheraton Hitchcock” chairs. Hitchcock is best known for their “Boston Rocker.”