Ceratonia siliqua harubh. "Ceratonia siliqua", the scientific name of the carob tree, derives from the Greek "kerátiοn" κεράτιον 'fruit of the carob (from "keras" κέρας 'horn'), and Latin "siliqua" 'pod, carob'. The unit "carat", used for weighing precious metal and stones, also comes from κεράτιον, as alluding to an ancient practice of weighing gold and gemstones against the seeds of the carob tree by people in the Middle East. The system was eventually standardized, and one carat was fixed at 0.2 grams. In late Roman times, the pure gold coin known as the "solidus" weighed 24 carat seeds (about 4.5 grams). As
Gold to Go of 24-carat gold are sold in 1, 5, and 10 gram sizes. Other items for sale include gift boxes of gold coins with symbols such as the Krugerrand, a maple leaf, or a kangaroo, and are dispensed in "handsome" boxes. Each gold bar is sealed in plastic with an anti-counterfeit hologram label, and comes with a description of its purity and price per gram, as well as information about the sale and the company's 10-day return policy. The German corporation plans to distribute 500 "gold ATMs" throughout airports and rail stations in Germany, Austria, Switzerland and Kumasi the capital Ashanti