Five punch-mark symbols / Blank, a number of bankers' marks. Irregular flat silver plachet, 18x15mm, 3.4 grams. Gupta/Hardaker ISPC series IV XXIII A 13 (#382). Very rare.These silver coins with various punchmarks are among the earliest silver Indian coins.Coinsof the Sisunagas (series IVa-IVc) are all rare and difficult to find -it is likely that most of these coins were melted and reissued by theNandas (series IVd). The dynasty of Sisunagas spanned almost 80 years -the Kings were:Sisunaga (Shishunaga) - ca.413-395 BCKalashoka - ca.396-367 BC10 sons of Kalashoka - ca.367-345 BCMagadha was an ancient kingdomin India, mentioned in both the Ramayana and the Mahabharata. It wasalso one of the four main kingdoms of India at the time of Buddha,having risen to power during the reigns of Bimbisara (c. 544-491 BCE)and his son Ajatashatru (c. 491-460 BCE). The core of the kingdom wasthat portion of Bihar lying south of the Ganges, with its capital atRajagriha (modern Rajgir). Magadha expanded to include most of Biharandparts of Bengal with the conquest of Anga, and then expanded uptheGanges valley annexing Kosala and Kashi.