![O25P3 - 1873 1c Official Mail Stamp - Justice, purple O25P3 - 1873 1c Official Mail Stamp - Justice, purple](https://cdn11.bigcommerce.com/s-9xwo1raw7u/images/stencil/500x659/products/90309/69612/USA-O25P3__05006.1711073906.jpg?c=1)
1873 1c Official Mail Stamp,Justice, purple
# O25P4 - 1873 1c Official Mail Stamp - Justice, purple
$7.50 - $12.00
Official Mail Stamps- Missing From Many Collections
Official Mail stamps, also known as departmental stamps, were developed in the 19th century as a means of accounting for postage on mail sent by various federal departments. These are a neat area of philately, and would make a great addition to your U.S. collection.
Official Mail Stamps- Missing From Many Collections
Official Mail stamps, also known as departmental stamps, were developed in the 19th century as a means of accounting for postage on mail sent by various federal departments. These are a neat area of philately, and would make a great addition to your U.S. collection.