The product is a Civil War era Pennsylvania National Guard Zouave coat jacket with Horstmann buttons. This original period item from the Civil War (1861-65) is a collectible piece of militaria, showcasing the unique design and craftsmanship of the time. The jacket is a tangible piece of history that represents the military history of Pennsylvania during the Civil War era, making it a valuable and sought-after item for collectors and history enthusiasts alike.