The Ulfberht swords are a group of about 170 medieval swords found primarily in Northern Europe, dated to the 9th to 11th centuries, with blades inlaid with the inscription +VLFBERH+T or +VLFBERHT+. T
+VLFBEHT+ inscription on the blade of a 9th-century sword (Germanisches Nationalmuseum FG 2187) found in 1960 in the Old Rhine close to Friesenheimer Insel, Mannheim
One of three Ulfberht swords found in the territory of the Volga Bulgars. Its hilt (classified as Petersen type T-2) is decorated with three lines of round holes inlaid with twisted silver wire.
Four Ulfberht swords found in Norway (drawings from Lorange 1889)
Pattern welding is a smithing practice of folding and/or twisting metal, possibly multiple pieces that are forge-welded. This results in differing layers in a pattern, hence the name. This process was
Ulfberht swords
…this type of geometric pattern but no Vlfberht inscription. Ulfberht swords were made during a period when European swords were still predominantly pattern welded ("false Damascus"), but with larger blooms of steel gradually becoming available, so that higher quality swords made after AD 1000 are increasingly…
A contemporary pattern-welded sword blade made by Danish swordsmith Ejvind Nørgård. The blade shows a chevron pattern with opposing twists and straight laminate alternating.
An image of a modern pattern welded knife blade, showing the dramatic patterning on the side below, and the layering of the steel in the spine above. Acid etching darkens the 1080 plain carbon steel more than it does the 15N20 low alloy nickel steel, producing alternating bands of light and dark on the surface.