This is a one off piece. It shows the Maeshowe Cairn in Stenness, Orkney.
This piece measures 17 x 15 cm approximately. This is made using clear glass with applied enamels. This is another amazing site to visit if you are travelling to the Orkney Islands.
Here is a clip from the Historic Scotland website.
Stand in awe of one of Europe’s finest chambered tombs, built some 5,000 years ago. Incredibly, the entrance passage to Maeshowe is aligned with the setting of the midwinter sun, so that the light illuminates the tomb’s interior.
Norse crusaders broke into Maeshowe in the mid-1100s, long after it had fallen from use. They too left their mark on the site: this time as graffiti carved in runes all over the main chamber’s walls.
Maeshowe is part of the Heart of Neolithic Orkney World Heritage Site.