http://i.imgur.com/KjIjIfC.jpg
The green one in the middle with a regular A instead of a Δ
Is it misengraved and is there any other recorded instance of it occurring
Oh! Sorry, nevermind what I just said, I’m tired(and am probably a bit dazed by all those Draupnirs :D).
I’m not 100% sure but there may have been just a standard edition Draupnir made in that colour because every other Draup I see in that colour on google is the “store edition” mentioned above with the triangle instead of the A.