For years we were looking for a WILD N3 level and were recently lucky and were able to buy a used instrument. It was amazing that when we checked the approx. 30 year old level, no deviations could be detected! The height difference in a test setup from the middle and from one end was identical to 0.015 mm! What a great instrument!
With the coincidence level, inclinations with a reproducibility of 0.25" can be produced! There are still measuring tasks in daily business that can be solved wonderfully with this excellent level!