From time to time I've noticed largish earthenware shards with a hole surrounded by another piece of applied clay. Not all that appealing or interesting but certainly a 'type' so I decided to take one home with me, intending to work out what it was some time later.
|Medieval Bung Holes from Cisterns. Left Coarse Whiteware bundhole from 1340 to 1440 AD,|
Probably the most interesting thing about them is that they are very old and still hold the original potter's thumb indentations. Many will be medieval and others will be from the Tudor period.
|Coarse Borderware with Bung Hole 1340 - 1440 (British Museum)|
|Medieval Cistern York (Doug Fitch Blog)|
|London Redware Cistern 1480-1600 (Museum of London)|