I was looking at some
ebay listings for 19th century covers and came across one with what appears to be a rather early (1867) postal marking that reads
"Have Your Letters Directed to Your Street and Number", presumably applied at South Dedham, Massachusetts.

Has anyone ever seen such an early use of this postal marking before?
Here's an image of the entire cover and the
ebay link:
http://www.ebay.com/itm/CIVIL-WAR-E...em20e9651c82