There's a vintage Moon fuel tank I have had my eye on for my coupe. It's old and kind-of rough. I don't mind that, so much, however I could get a brand new one (from Moon) for a couple bucks more and it looks dang-near identical. That got me thinking. What's different? Tags appear the same. Dimensions and outward appearance seems the same. I don't actually mind buying new if it's the same item produced all these years later.