Coins from Celtic Britain
The Britons were Celtic people who inhabited the British Isles from the British Iron Age into the Middle Ages. They spoke the Common Brittonic language, the ancestor to the modern Brittonic languages.

The territory inhabited by the Britons was composed of numerous ever-changing areas controlled by Brittonic tribes. The extent of their territory before and during the Roman period is unclear, but is generally believed to include the whole of the island of Great Britain, at least as far north as the Clyde-Forth isthmus, and if the Picts are included the entirety of Great Britain.

British Celtic coin designs were, like coin designs of the Celts elsewhere, initially local copies of designs struck elsewhere. The first homegrown British Celtic coins were bronze coins copying designs from Massalia. Later on, original designs were added to the more and more stylized and celticized designs, until production of tribal coinage more or less ceased completely following the invasion of Britain by Claudius in 43 AD.
Celtic Britain
The Atrebates were a Belgic tribe of Gaul and Britain before the Roman conquests. In Britain, their territory comprised modern Hampshire, West Sussex and Berkshire.

After being defeated by Caesar in the Gallic Wars, he appointed a local noble King and the Atrebates were from then on recognized as a client kingdom of Rome.

Coins struck by the Atrebates in both Britain and Gaul...
The Cantii or Cantiaci were an Iron Age Celtic people living in Britain before the Roman conquest. They lived in the area now called Kent, in south-eastern England, and their capital was Durovernum Cantiacorum, now Canterbury.

Julius Caesar landed in Cantium in 55 and 54 BC, the first Roman expeditions to Britain - he writes that "Of all these (British tribes), by far the most civilise...
The Iceni or Eceni were a Brittonic tribe of eastern Britain during the Iron Age and early Roman era. Their territory included present-day Norfolk and parts of Suffolk and Cambridgeshire.

The Iceni were a significant power in eastern Britain during Claudius' conquest of Britain in AD 43, in which they allied with Rome. They remained nominally independent under king Prasutagus until his ...
The Dobunni were one of the Iron Age tribes living in the British Isles prior to the Roman invasion of Britain. There are seven known references to the tribe in Roman histories and inscriptions.

The tribe lived in the part of southwestern Britain that today broadly coincides with the English counties of Bristol, Gloucestershire and the north of Somerset, although at times their territor...
The Catuvellauni were a Celtic tribe or state of southeastern Britain before the Roman conquest, attested by inscriptions into the 4th century.

Tasciovanus was the first king to mint coins at Verlamion, beginning ca 20 BC. He appears to have expanded his power at the expense of the Trinovantes to the east, as some of his coins, ca 15–10 BC, were minted in their capital Camulodunum (mode...
The Durotriges were one of the Celtic tribes living in Britain prior to the Roman invasion. The tribe lived in modern Dorset, south Wiltshire, south Somerset and Devon east of the River Axe and the discovery of an Iron Age hoard in 2009 at Shalfleet, Isle of Wight gives evidence that they lived in the western half of the island.

The Durotriges were more a tribal confederation than a tri...