Union general (1819-1893) who commanded a division at Gettysburg and has controversially been credited with the invention of baseball. Partly-printed DS, three pages on two adjoining sheets, 10.5 x 17, October 5, 1852. Indenture mortgage document between Doubleday, his wife Mary, and Henry Brackin, for the sale of the Doubleday's property in Baltimore for the sum of $600 with the document providing detailed information about the property and the transaction. Prominently signed at the conclusion by Doubleday and countersigned by his wife Mary. Also included is a surveyor's plot of the property owned by Doubleday and his wife, 16.5 x 13, giving an aerial view of the land at the corner of Baltimore Street and McClellan Alley. In very good condition, with a cleanly separated central horizontal fold and smaller splits to other folds (one passing between Doubleday's first and last names). Accompanied by a full letter of authenticity from PSA/DNA, as well as an unsigned first day cover.
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