![O79P3 - 1873 15c Official Mail Stamp - Treasury India paper, brown O79P3 - 1873 15c Official Mail Stamp - Treasury India paper, brown](https://cdn11.bigcommerce.com/s-9xwo1raw7u/images/stencil/500x659/products/69257/51751/USA-O79P3__49435.1711087897.jpg?c=1)
1873 15c Official Mail Stamp, plate on India, black
# O53P3 - 1873 15c Official Mail Stamp - plate on India, black
$27.50
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.