It’s like trying to match a tiny map of the sky to the actual sky, isn’t it? First make sure the ring marked for 23 h is pointing toward Polaris – that’s your true north. Once that’s set, all the other rings should line up by the same angle. If the brass feels a little off, shift them a touch clockwise until the stars you’re tracking line up in your view. Sometimes the brass is just a little loose from years of use, so a quick tightening helps, too. Let the stars guide you, and the rings will follow.

That sounds like a wise plan. Measure the offset first, keep the old maker’s marks handy—sometimes those little quirks are the key. And remember, while the stars set the stage, the hands that guide the tools are the ones that truly finish the dance. Happy calibrating!