The Oseberg ship (Norwegian: Osebergskipet) is a well-preserved Viking ship discovered in a large burial mound at the Oseberg farm near Tønsberg in Vestfold og Telemark county, Norway. This ship is commonly acknowledged to be among the finer artifacts to have survived from the Viking Era. The ship and some of its contents are displayed at the Viking Ship Museum at Bygdøy on the western side of Oslo, Norway. Excavation of the ship from the Oseberg burial mound (Norwegian: Oseberghaugen ved Slagen from the Old Norse word haugr meaning kurgan mound or barrow) was undertaken by Swedish archaeologist Gabriel Gustafson and Norwegian archaeologist Haakon Shetelig in 1904–1905. The grave also contained two female human skeletons as well as a considerable number of grave goods. Scientific dating of the ship suggests it was buried no earlier than 834, although certain parts of its structure date from as early as 800, while other parts may be even older. Structure The ship is a Karve, clinker built, almost entirely of oak. It is in length and broad, with a mast of approximately in height. With a likely sail area of , the ship could have achieved a speed up of up to 10 knots. The ship has 15 pairs of openings for oars, enabling up to 30 people to row it. Other fittings include a broad steering oar, iron anchor, gangplank, and a bailer. The bow and stern of the ship are elaborately decorated with complex woodcarvings in the characteristic "gripping beast" style, also known as the Oseberg style. During the debate on whether to move the original ship to a proposed new museum, thorough investigations were made into the feasibility of moving the ship without damaging it. As part of that process, highly detailed photographic and laser scans of both the exterior and interior of the ship were made. Replica In 2004, an attempt to build a copy of the Oseberg ship was launched. A collective effort of Norwegian and Danish professional builders, scientists and volunteers engaged in this new attempt with the photo and laser scans made available free of charge to the builders. During this new attempt, it was discovered that during the initial restoration of the ship a breach in one of the beams had been made and that the ship was therefore inadvertently shortened, a fact that had not been appreciated earlier. This may be why several earlier