Post mark(redirected from Postal marking)
Also found in: Wikipedia.
POST MARK. A stamp or, mark put on letters in the post office.
2. Post marks are evidence of a letter having passed through the post office. 2 Camp. 620; 2 B. & P. 316; 15 East, 416; 1 M. & S. 201; 15 Com. R. 206.
A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.