Postal regulations dictate specific dimensions for postcards to qualify for mailing at the postcard rate. Generally, rectangular cards must be at least 3.5 inches high by 5 inches long and no more... Read more »
Postage for overseas mail transported by air once required a specific designation and fee. An eight-cent denomination frequently fulfilled this requirement during a specific period in postal history. These stamps often featured... Read more »
The expenditure associated with sending a single piece of mail without an envelope through a postal service encompasses several factors, including postage rates, card size and weight, and any additional services like... Read more »