The Mauryan empire was based on the money economy.Kautilya refers to suvarna, silver pana and copper mashaka as a token currency. A horde of punch marked silver coins were found at Golakhpur at a site of ancient Patliputra belonging to Pre-Mauryan times. Most of these coins have only symbols like tree in railing, sun, moon, mountain, and animals, birds etc punched or stamped on them. These symbols on the coins had probably some connection with local commerce such as the guilds, local or provincial administration, the royal and dynastic symbols etc. The sites from where these coins have been found imply that these places were inhabited during the Mauryan period.