The two 1976’s were wrong

So I bought two 1976 Zippos that were in excellent shape. If you read this thread I lost mine. Anyway, got them and terrible for me. Guess why? Upside down stamp. I am ocd as fuck and shit hats to be right. Placed them away. Oh I will still find the right one. Hell, I have an unfired one I found with my initials on it. Leaving unfired. Still using my copper one.