The Wolfsegg Iron, also known as The Salzburg Cube, is a small cuboid mass of iron that was found buried in Tertiary lignite in Wolfsegg am Hausruck, Austria, in 1885. It weighs 785 grams and measures 67 x 67 x 47mm. Four of its sides are roughly flat, while the two remaining sides (opposite each other) are convex. A fairly deep groove is incised ...