A copper-alloy hair pin of the Roman period.
The pin has a bun-shaped head, immediately below which the shank has two undercuts. Below this the shank progressively tapers to the pointed tip. The cross-section is approximately circular throughout its length.
The pin is complete, but acutely bent at a point about a quarter of the way along its length from the head, and slightly bent again at a point about two-thirds of the way along.
Nina Crummy (see ref. below) argues that pins of this form are hair pins, rather than dress pins, as their thick shanks contrast with the fine pins used on contemporary brooches. She suggests that pins of this particular form (Type 5) date to the 2nd century AD.