Nai, panpipes. Maple wood pipes. The pipes are plugged with corks, that are fixed into place and tuned with beeswax, the smaller or bigger quantity of wax yielding a higher or lower sound.
These pipes were originally in the collection of the Romanian Museum of Peasant Art, who acquired them in 1955. The original documentation states that they are found only in the Oltenia, Wallachia and Dobroudja regions of Romania.