This United States 28¢ postal stationery card, issued in 1988, features the sailing packet ship Yorkshire, a vessel of the famous Black Ball Line, one of the earliest regular transatlantic shipping lines. Established in 1817, the Black Ball Line operated scheduled packet service between New York and Liverpool, revolutionizing ocean mail and passenger transport. The design shows the fully rigged sailing ship navigating open waters, reflecting the era when packet ships carried letters, cargo, and emigrants across the Atlantic. Postal stationery like this card highlights the historic connection between maritime transport and the development of international mail routes.