15.  A scarce antique dental forceps-key extractor marked: BAKER & RICE / PATENTED 1845 // J. FENTON / COLUMBUS [OHIO].  The instrument is a combination of the attributes of the an extracting forceps and a toothkey.  Squeezing the grip controls the claw, an action which must be done with a finger to the claw on a regular toothkey.   This dealer is aware of only one other example of a Baker and Rice patented dental forceps-key.  John Fenton was active in Columbus from 1843 to 1863, as cited in Edmonson, p. 250.  SALE PENDING

  17.  A c. 1830 antique monaural Piorry stethoscope.  The body is cedar and the earpiece and pleximeter are ivory.

  18.  A very rare c. 1880s albumen photograph of the shop of the surgical instrument maker Frederick Haslam at 83 Pulaski Street, Brooklyn.   Edmonson shows no such photographs of nineteenth century surgical instrument maker's premises.  See Edmonson, p. 211.

  19.  A c. 1850 antique trephine by Weiss, London.  The slots in the crown blade were thought to ease the clogging of the neurosurgery trephine caused by the mixture of bone dust and blood.  Note the decorative formed horn handle with rosette finials and the impressed name:  WEISS // LONDON.

  20.  A c. 1858 ninth-plate daguerreotype of David Willis Cadwallader, M.D. (1837 - 1875).   Dr Cadwallader was an 1858 graduate of the University of Pennsylvania, and he served in the 104th and 169th Pennsylvania Infantry during the Civil War.  He practiced in Philadelphia and is a descendant of the well-known Cadwallader (Cadwalader) family of Pennsylvania.