This stone jewelry mold was recently excavated in Chur, the capital of the Swiss canton of Grisons. The uneven square measures 9 x 8.3 x 3 centimeters (3.5 x 3.3 x 1.2 inches). These are very rare objects, and the 10th century was pretty much the nadir of economic activity in Europe, so quite cool. Although the buildings at the site were held up by wooden posts and thus rather primitive, there was much evidence of craft production, including waste pieces of glass, metal, horn, and bone. Via The History Blog.