Collectors from other countries find our fascination with "mint errors" confounding. An accidental "mint error" in a foreign country is worth LESS, not more. I've never quite understood the attraction to them myself. A variation is something done purposely, and in small numbers is rare and makes sense. Something done accidentally, like a clipped planchet or a die rotation? That's not a mint error, it's an accident. The recent actual mint error in Chile where many thousand coins of a particular denomination went out with the country name spelled "CHIIE", now that's an actual error variation.