Why are are the grid references given in the Celtic Coin Index Online incomplete?
Many of the coin records have been provided by metal detectorists who, quite understandably, want the exact find spot kept confidential. In other cases, coins have been found on private land, and the owners are reluctant to have their property trespassed upon by individuals who have not received permission. However, many grid references are from published excavations and other finds where confidentiality is not a concern. The provenance data will usually indicate where this is the case. If the provenance publication is given, the full grid reference can be found there. If the information is not available, and it is necessary for you to obtain this data, contact the Keeper of the Index, and if the exact reference is not confidential, he will be more than happy to provide further detail.
