Chemist and inventor (1778–1829) best known for his discoveries of several alkali and alkaline earth metals, as well as contributions to the discoveries of the elemental nature of chlorine and iodine. ALS signed “H. Davy,” one page, 4.5 x 6.25, no date. In full: “I hope you are disengaged on Thursday & will dine here instead of dining at the Club.” In very good condition, with intersecting folds, light staining, and a mounting strip on reverse. Accompanied by an unsigned engraved portrait. Pre-certified PSA/DNA.
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