Physician and Continental Congress delegate (1747–1801). ALS, one page, 7.5 x 9.25, April 30, 1792. Letter to John Nicholson. In part: “Please to read the enclosed & give an answer respecting the exchange of Certificates.” In good condition, with intersecting folds, several passing through signature, a few partial separations, uniform toning, and a couple pencil notations. RR Auction COA.