Detail of the back of a copper alloy nummus of Constantine I, dated AD 335 to 337, found during excavations at Silbury Hill made by Professor R J C Atkinson between 1968 and 1970 and now held at the Alexander Keiller Museum in Avebury, shown with a scale bar
- Date:
- 31 May 2011
- Location:
- Silbury Hill, Avebury, Wiltshire
- Reference:
- DP138544
- Type:
- Photograph (Digital)