ANS in pencil, signed twice with his initial, “E,” one page, 6 x 8.75, no date. Handwritten note in pencil, addressed to "Hallowell," in full: "This man Gardener seems to be 'some' salesman." Below, he adds: "Encourage him to follow out his ideas as far as possible to see how the experiment works." In very good to fine condition, with rough edges, a rusty paperclip impression to the top edge, and a tear within the underlining beneath "Hallowell" at the top. An interesting handwritten note from the celebrated inventor, widely known for both his laboratory experiments and his shrewd business acumen; this fine autograph combines the two.
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