Specimen - Bermuda - 100 dollars (gold)

Hello.
I have found a specimen of this coin  ( Bermuda - KM#27), but I do not know if the value of the specimen coin is the same, more or less, than the coin issued by Franklin Mint or Royal Canadian Mint.

The coin has a COA of the Bermuda Monetary Authority, but  wiithout number¿?

It this coin a fake or it would be a valued coin?

Thank you

I wouldn't like to say it is fake but I have not seen one with the same stamp mark under the ship.

Thank you Tony.
After 4 hours reading, I have found out that this mark that it is the same that appears in old silver and gold jewellery. Star 1 AR (unoaerre), it is a jewelry store founded in Arezzo, Italy in 1926. They made some interesting modernist designs in the 70's & 80's and collaborated with some well known fine artists.
Now I have to find out more about it (I suppose that this coin maybe it's like a restrike of other old coins), but I can not understand why the COA of a specimen inside.

Looks ok to me also