Biatec was the name of a person, presumably a king, who appeared on the Celt

Celt

The Celts were a diverse group of tribal societies in Iron Age and Roman-era Europe who spoke Celtic languages.The earliest archaeological culture commonly accepted as Celtic, or rather Proto-Celtic, was the central European Hallstatt culture , named for the rich grave finds in Hallstatt, Austria....

ic coin

Coin

A coin is a piece of hard material that is standardized in weight, is produced in large quantities in order to facilitate trade, and primarily can be used as a legal tender token for commerce in the designated country, region, or territory....

s minted by the Boii

Boii

The Boii were one of the most prominent ancient Celtic tribes of the later Iron Age, attested at various times in Cisalpine Gaul , Pannonia , in and around Bohemia, and Transalpine Gaul...

 in Bratislava

Bratislava

Bratislava is the capital of Slovakia and, with a population of about 431,000, also the country's largest city. Bratislava is in southwestern Slovakia on both banks of the Danube River. Bordering Austria and Hungary, it is the only national capital that borders two independent countries.Bratislava...

 (the capital of Slovakia

Slovakia

The Slovak Republic is a landlocked state in Central Europe. It has a population of over five million and an area of about . Slovakia is bordered by the Czech Republic and Austria to the west, Poland to the north, Ukraine to the east and Hungary to the south...

) in the 1st century BC. The word Biatec (or Biatex) is also used as the name of those coins. In the literature, they are also sometimes referred to as "hexadrachms of the Bratislava type". Biatecs, in fact hexadrachms

Greek drachma

Drachma, pl. drachmas or drachmae was the currency used in Greece during several periods in its history:...

 and tetradrachms made of high quality silver

Silver

Silver is a metallic chemical element with the chemical symbol Ag and atomic number 47. A soft, white, lustrous transition metal, it has the highest electrical conductivity of any element and the highest thermal conductivity of any metal...

 and gold

Gold

Gold is a chemical element with the symbol Au and an atomic number of 79. Gold is a dense, soft, shiny, malleable and ductile metal. Pure gold has a bright yellow color and luster traditionally considered attractive, which it maintains without oxidizing in air or water. Chemically, gold is a...

, bear inscriptions in capital Latin letters. Among 14 different inscriptions (for example NONNOS, DEVIL, BUSU, BUSSUMARUS, TITTO), BIATEC appears most frequently. The inscriptions represent the oldest known use of writing in Slovakia and the neighboring territories. The coins have a diameter of 25 millimeters and a weight of 16.5-17 grams. The obverse usually shows various depictions of a head or a pair of heads. The reverse usually shows a horseman, but various mythological and real animals also occur.