Henry Deringer Jr. Gun Maker Twice Signed Indenture

Henry Deringer is exceedingly rare only few know examples and this one of the only documents that we are aware of signed twice! 

Very Rare, Henry Deringer Jr. Partly-printed vellum Document Signed, twice, indenture between "Henry Derringer [sic] of the County of Philadelphia Gun and Rifle Manufacturer" and Edward Ingersoll and wife, in which the latter transfers to Deringer a plot of land on the East side of Front Street in Philadelphia, for fifty silver milled dollars .....in half yearly payments. On the verso is written a manuscript indenture, transferring the same land back to the Ingersolls on April 1, 1824. 16 1/2x22 inches, scalloped upper edge; folds, minor scattered soiling, few tiny holes at folds lower left. Philadelphia, 22 March 1820.In fine condition. One of only a few known examples of Deringers signature.