Show off your appreciation for vintage designs with this unique t-shirt. This black, short-sleeved shirt features a detailed patent drawing of a classic fountain pen. The print includes technical details and signatures, adding an authentic touch. Made from a comfortable fabric blend, this tee is perfect for everyday wear or as a statement piece for those who admire engineering and history. Pair it with jeans for a casual look, or dress it up with a blazer for a more refined style. A must-have for collectors and design enthusiasts!