Examples of the type

British Museum, 1988,0627.850
Found: Wanborough Temple, Wanborough, Surrey See on the map
ND (20-43) – (en) Base core
11 mm0.79 g
British Museum, 1919,0213.377
Found: Wallingford, Oxfordshire See on the map
ND (20-43) – (en) Base core
11 mm0.87 g