Posted 4 years ago
I'm very glad with my last purchase; This is an old level, based on the libella principle. It is in the shape of isosceles triangle with sides of 10 mm - 11.5 mm - 11.5 mm. How old is it I have no idea. It can be from XIX c, or it can be from XIII c., when the construction of Cologne Cathedral commenced... So if you can find any clue...