On the Andover Norton Head Gaskets, I have seen
Oddly the " Fibre 850" gaskets are marked TOP on the "plain side" So that is what you do.
But "Fibre 750" are not marked top. But using the reason behind the 850 ,,On 750 gaskets I put the "plain side" up like an 850 and the "Printed side" down. The reason being what hybridracer said.