A playing field in Gloucestershire has been closed for nearly a year following the discovery.
Police ask drivers to avoid the side roads near to the scene which remain closed.
Drivers are urged to avoid the area while closures are in place on Cirencester Road and Gypsy Lane.
Road closures are in place while investigation work takes place.
The 8m wide shield is the centrepiece of a memorial which will be unveiled in Washington DC.
The company is celebrating 40 years in business and created the first breathalyser used in pubs.
Cotswold villagers launch petition to save dry stone wall they rebuilt from being demolished
Megan Williams will take on the London Marathon after her friend died from a brain tumour.
Denise Wynn is continuing her father's campaign for a memorial to the Chinese fisherman who saved his life in WW2.