If you’re sending mail within the United States, it’s not required to put the country, but it never hurts to include this information. On the same side of the envelope, write your return ...

The Post-office Department has adopted the following rules for embossing postage stamps upon envelopes or paper, presented by private parties: 1. Applications must be made to the Postmaster of the ...

I see that one Maynard Benjamin gave a slide lecture on the history of envelopes at the National Postal Museum recently. He has also written a book on the subject, and he signed copies after the ...

has been placed in charge of this division. This section is specially designed to encourage parties to purchase postage stamps and stamped envelopes as articles of trade, to be resold, and thus ...