From Laughing Moon Mercantile:
Ladies' Round Dresses, 1840's to1852, With Three Bodice and Five Interchangeable Sleeve Options, Pelerine and Under sleeves -View A is front opening with a plain back, close long sleeves and mancherons (sleeve caps). View B is back opening with front and back bodice overlays gathered at the front and back waist and shoulders. Three layer sleeves with separate long close sleeves, over sleeves and tucked mancherons. View C is back opening with an overlay gathered at the front waist with a plain back. The sleeves are pagoda with mancherons. The pelerine is seamed at the back of the shoulders, longer in front than in back, and meets at the center front. Included are plain under sleeves for View C.