![O43P1 - 1873 24c Official Mail Stamp ultramarine, navy O43P1 - 1873 24c Official Mail Stamp ultramarine, navy](https://cdn11.bigcommerce.com/s-9xwo1raw7u/images/stencil/500x659/products/63973/47243/USA-O43P1__64625.1711044433.jpg?c=1)
1873 24c Official Mail Stamp,ultramarine
# O43P4 - 1873 24c Official Mail Stamp - ultramarine
$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.