Yes, this is indeed a genuine item.
I too own one.
Mine is identical - but it also has a white circular self-adhesive label/sticker promo club mix on one side.
I think it cost me around £20 at the time of release (ie mid 1980's).
The music is the just regular 12" version though - nothing special there I'm afraid.
"Listen to them. Children of the night. What music they make."