Two weeks ago I visited Laurium or Laurum (Woerden) in the Netherlands. Laurium was a castellum in Germania Inferior along the Limes (river Rhine, currently the Old Rhine). Laurium is famous due to various ships (7) which were excavated near the vicus and the castellum. The first (wooden) construction of the fortification (auxilia) dates 41 AD, during the reign of Caligula. A few years later a castellum was built of stone. Probably to supply the Roman troops which invaded Britain.
It is nice to find references to antique entertainment so close at home. This small oillamp with theatermask, dates approximately 75 AD. So made during the reign of Vespasian (69-79 AD), and although it is not the most beautful oillamp I have seen until now, it is still worth while this entry. It is on display at the Stadsmuseum Woerden.
More pictures of theater masks and objects can be found here.