[MEDICINE]. Original Engraved Certificate Appointing John Babcock Arden, M. D. as Resident Physician of the House. New York: John R. Murray for New-York Hospital, April 2, 1850. Engraved certificate on parchment with calligraphic manuscript additions. With engraved view of New-York Hospital and original red seal. Approximately 496 x 399 mm. Signed at bottom by the president and secretary of the hospital. Mild rubbing, minor marginal soiling, one horizontal crease, minor wear to seal. New-York Hospital (now New York - Presbyterian Hospital) is the oldest hospital in New York (founded in 1751), and the second oldest hospital in the United States.