Usually, this cover only shows the raised square part. In the picture you can see the lid in its entirety.
In the next picture taken on the same day next to this lid, the lid can be seen in the usual way (sunken) Click for a larger image
The same cover but intended for a specific consumer is here Click for cover's details
Notice the resemblance between this cap and a Greek cover Click for cover's details Translation of the text on the cover
EN124 CLASS B125