From www.myspace.com/vladquigley 17th Century décolletage fashion; image lightened by gogm to bring out details.
Countess Diana's dress in this 1638 Johnson portrait has a collar that would have been current earlier in the 1630s.
Keywords: 1638, Johnson, Diana Cecil, Cecil family, Bruce family, Countess, British, curly coiffure, ribbon headdress, square décolletage, collar, elbow length puffed sleeves, back-flared engageantes, waist band, bows, jacket bodice, close skirt, floral bodice ornament, necklace, earrings, fan