Engravings on this Aug-Sep, 1857, movement have the new AT&Co appearance, but the potance is the same as employed on DH&D movements and the full four-digit serial number is stamped on the underside of the top plate as on DH&D movements, neither of which is the case on later movements. However, it does have 16 jewels with the center arbor jeweled on the pillar plate. Porcelain dial is plain with Roman numerals, but not original; the seconds bit would likely be sunk. Case is just a holder.
