The Coppergate Helmet (York Helmet) is an eighth-century Anglo-Saxon helmet found in York.
 | It was discovered in May 1982 during excavations for the Jorvik Viking Centre at the bottom of a pit that is thought to have once been a well. The helmet is one of seven Anglo-Saxon helmets known to have survived to the present day, and is by far the best preserved. The brass banding within the crests bears a Latin inscription:
IN NOMINE : DNI : NOSTRI : IHV : SCS : SPS : DI : ET : OMNIBVS : DECEMVS : AMEN: OSHERE : XPI
"In the name of our Lord Jesus, the Holy Spirit, and God; and to all we say Amen / Oshere / Christ". Oshere is a male Anglian name and XPI are the first three letters of the word Christos Χριστός (khristos) in Greek. |  The helmet forms part of the permanent collection of the Yorkshire Museum and has been included in many public exhibitions. |
The helmet was probably made around 750-775 AD. The Vikings invaded York in 866, and the Northumbrians, unsuccessfully, a year later. The helmet's owner had much motivation to hide the priceless artifact.