bodies are shown alongside examples of the material culture of the Celtic Iron Age period, including metal weapons, horse trappings and wooden and leather pieces, including Ralaghan Man, a carved wooden figure believed to be an ancient boundary marker. Early Medieval The museum's treasury room exhibits early medieval Christian and secular Irish metalwork dating from the late Iron Age to the late 12th century, and contains important pieces from both the La Tène and Insular periods. The earlier works shows growing influences from the Anglo-Saxon art from England as well as the Germanic areas of Europe, while many of the pieces after the late 8th century show the influence of Viking art. Chalices, crosses, reliquaries, crucifixion plaques The displays in the Treasury room are arranged chronologically, and begin with pieces such as the Rinnegan Crucifixion Plaque, one of the earliest extant representations of the crucifixion in Irish art, and outside of illuminated manuscripts a rare example of both representation and a narrative scene in early Irish Insular art. Bell shrines are among the most numerous early medieval artifacts to survive. The best known examples in the museum's collection are St. Columba's bell and the bell and shrine of St. Patrick. The so-called "Golden Age" of Irish art begins with ecclesiastical metalwork produced from the 8th-century, mainly reliquaries and liturgical vessels, including the 8th century Moylough Belt-Shrine and the 8th or 9th century Ardagh and Derrynaflan chalices. The impact of the Viking invasion can be seen in Irish metalwork after the early 10th century, both in an expansion of the available materials such as silver and amber, and the absorption of Scandinavian techniques and styles. This period coincides with an era of church reform Church and the beginning of secular patronage for artwork. As many of these objects were lost in antiquity and only re-discovered in the 19th and 20th centuries, the museum plays a key role in dating, restoring and preserving newly found objects. Major recent finds include the Tully Lough Cross, found in County Roscommon in 1986. The Faddan More Psalter (c. 800 AD), discovered in a bog in July 2006 in the townland of Faddan More in north County Tipperary, is held in an adjacent gallery to the Treasury. Brooches The museum holds a substantial number of ornate penannular Celtic brooches. Produced as clothes fasteners for the elites of Ireland and Scotland, they were usually worn singly at