Cylinderheadgasket gpz550 1982

Hi,
Which side should be turned upwards on this cylinderhead gasket?
The only difference I can see is that the metal edge is a bit wider on one side.
There are no markings at all on the gasket
Thanks in advance
Anders

I would say the thinn metal ring to the steel liners/sleeves and the thicker metal ring to the cylinder head (aluminum).

Thank you for the answer.Scirocco.
Yepp that makes sense.