Dont worry. It's still a Midas. It came from the Midas moulds under Harold's interim advice I believe but with thicker laminates. Certainly my Convertible's laminate thickness is a lot thicker than the original factory built Coupe I also have.
Some were specified with a gelcoat colour and some were specified uncoloured, ready for painting by owner...like mine.
Yours is the sister car to mine if it was Andy Murrays. I think yours was originally red. Theres a picture of it with the Eiffel Tower in the background in one of the old club magazines.