This antique 1/4 plate Daguerreotype of an older Victorian lady does not come in a case and is not sealed. It is 2¼x3¼''. Please see photos. The hallmark - Asterisk J P Doublé 40. Indicates production between 1840-1845. This hallmark is liable to be confused with the Gaudin. The figures indicating the silver content look different, and the stylized soil underneath the lamb has a bigger profile, and underneath this, in some hallmarks, it seems to see a point in a central position. Jean-Baptiste Pillioud (J. P.) was a silversmith and maker of "plaqué et doublé" in the early 1800s. Gaudin took over the business presumably after 1845; the general appearance of the hallmark remained unchanged, without the initials "J P", but with the word GAUDIN.Please see photos.