Vintage Vespa Porcelain Sign. Made with porcelain this sign measures 12 across. This sign features Vespa as the brand with the Piaggio lettering at the top and is a perfect addition to any man cave, garage or workshop. The sign’s theme makes it a unique piece that will stand out in your collection. This sign will enhance your mancave, collection, shop, or garage. It is your chance to own a piece of Vespa advertising. Piaggio Sales & Service. 12 inches in diameter. Vibrant colors and excellent porcelain.