I have just received a CD 239 Kimble (Hemi blot-out) [040]. Being new to this type of insulator, I don't know if this is the "clear w/ light carnival top" or the "light straw w/ treated top" version. The top has an iridescent type sheen to it, but it is very, very light. Any help from the Hemi experts out there?

ANSWER: The general consensus of the replies I received is that this is the clear w/ light carnival top. It does indeed have a carnival sheen at the top, but it is light. I have been informed that the "treated top" is dark or black, so this is definitely not that one. Thanks everyone!