Leo, NC, Washington County, August 1, 1852. This unusual heart shaped postmark is one of only six known examples of this handstamp. Postmaster Thomas White opened the post office on December 20, 1850 and shortly began using this fancy handstamp. He would be replaced by John Phelps on January 27, 1852. The post office was discontinued June 1, 1853. Note the reverse n of North Carolina.