This tiny piece of copper is one of the most exciting things we've ever found, mainly due to spiral pattern on it. It is classic 'La Téne', what is commonly referred to as 'Celtic'. But the plate was so corroded the pattern wasn't even visible until I shone a strong oblique light over it and suddenly the shadows jumped out at me. Less than 3cm (~1inch) wide, wafer thin and bent almost in two. A very difficult object to photograph! It has studs in the edges that show it probably would have been decoration on some kind of wooden object. If you cannot see the pattern, have a look here [link]
for an enhanced version.
From near Kings Lynn, UK, 100-200B.C. From the same site:
The copyright for this belongs to Heritage Lincolnshire, so please do not copy or re-use the picture