United States. Postmaster General.

• List of post-offices in the United States
• Postal savings banks
• General Post-Office, Philadelphia, May 1, 1776
• General Post-Office, Philadelphia, May 1, 1776
• Post Office. Philadelphia, January 1st, 1788
• Post-Office, Philadelphia, January 1st, 1789
• Post-Office, Philadelphia, January 1st, 1789
• Table of post-offices in the United States
• Tables of the port of all single letters carried by post in the northern district of North-America, as established by Congress, one thousand seven hundred and seventy-five