Silver 1/2 Unit Harlow Horses

The Catuvellauni dominated a substantial portion of what is now Hertfordshire and Essex in the decades before the Claudian invasion, and their coinage reflects a tribe at the height of regional influence — issuing fractional denominations that facilitated small-scale exchange across a trading network centered on oppida like Wheathampstead and later Verulamium. The "Harlow Horses" designation comes from findspot clustering around the Harlow temple complex in Essex, a ritual site where votive coin deposits have skewed the archaeological distribution of this type considerably.

At 0.3 g, these fractions were among the smallest silver pieces in circulation anywhere in late Iron Age Britain.