Roman Empire, 1st - 2nd Century ADrnAE key ring, 26mm, 5.54 grams. This type used for small boxes and other types of furniture.rnFor reference, see:rnAndrew Birley, Vindolanda Volume IV, Security: The Keys and Locks, #38-43.rnNigel Mills, Celtic & Roman Artefacts, #RB243 & 249rnReiche & Schalles, Handwerk und Berfude in der Romischen Stadt, pp 46-7.rnPaul Murawski, Benet's Artefacts of England & The United Kingdom, Current Values, #R17-0101-8