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American jurist and politician (1785-1861) who served in Congress, as postmaster general, and as an associate justice of the Supreme Court. Partly-printed DS, one page, 16 x 10, February 24, 1829. As postmaster general, McLean appoints Joseph Keith as "a Postmaster…at Keith's Mills, Kennebec County, Maine." Boldly signed at the conclusion in ink by Postmaster General John McLean. In fine condition, with a few scattered small stains.
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