Finnish beer bottles have a I or a III (or occasionally an A) on them, indicating their strength. I've never seen a II and Wikipedia confirms that it's never used in practice.
Reminds me of German edible mushrooms -- they typically come in "I. Wahl" (first choice: whole mushrooms) and "III. Wahl" (third choice: less "pretty" specimen, and usually in slices or pieces, e.g. bare stems without "hats"). I don't think I've ever seen "II. Wahl"/second choice.
Finnish beer bottles have a I or a III (or occasionally an A) on them, indicating their strength. I've never seen a II and Wikipedia confirms that it's never used in practice.