Traditional Irish Harp
The Irish harp is a lovely and ancient instrument. According to Susanna Duffy, the Irish harp, with its history parallel to that of the Irish people, was the "dispenser of sorrow, gladness, and rest."
These early small Celtic harps were made of bog wood in the 16th and 17th Centuries. The one in the photo may be seen at Trinity College Dublin, and it's close Scottish relative, the Queen Mary harp, is kept in the National Museum of Scotland in Edinburgh.