Thankyou, thankyou, thankyou. Hair ring, of course. Isn't it odd how everything fits into place with just a tiny nugget of information? It's also amazing what is being sold in these mixed lot of detectorist finds on eBay for not very much money. I'm making an Arts Council grant application to bury 666 pieces of detector finds on the extensive Newcastle Town Moor but may have mentioned this previously. Just don't tell 'em it's scrap! Those romans were skilled at imitating gold with the calchicum alloy, or whatever it was called. I guess I'll have to solder the snapped hair ring !