Celtic neck torc from Ipswich, 150BC to 50AD (original in British museum).
The neck-ring consists of two 8mm thick bars twisted together. The terminals are cast and decorated in relief with Tène II style curvilinear motifs of bosses and scrolls, within a border of two corded bands lying close together.
The torc is made from coppoer and brass and heavily plated in 24ct gold. The terminals are 4cm wide. Inner diameter of the torc is about 17cm but can be opened out by about another 2cm and still be wearable.