n Rush"), countersigned by Philip S. Physick (1768-1837), resident of the City Hospital, to an unnamed correspondent ("Dear Sir"), 29 August 1799, City Hospital, Philadelphia. 2 pages, folio, cleanly separated along central horizontal fold, minor age-toning, cloth slipcase." /> RUSH, Benjamin (1745-1813). Autograph letter signed ("Benj<SUP>n</SUP> Rush"), countersigned by Philip S. Physick (1768-1837), resident of the City Hospital, to an unnamed correspondent ("Dear Sir"), 29 August 1799, City Hospital, Philadelphia. <I>2 pages, folio, cleanly separated along central horizontal fold, minor age-toning, cloth slipcase.</I> | Christie's