I took a closer look at mine:
look in the back, the 'tab' or extrusion where the pressure real ease is has to line up on the L side of the tab or extrusion on the bottom part:
this is the back part turned 45 degrees for the pic :
here is the front at the same time :
Ive mentioned in the past that both the top and the bottom 'markers' would be better seen in a contrasting color.
the two arrows and the rest of the info might be more helpfull in white
this pic is with a high powered Flash. impossible to see in 'reasonable'kitchen light
that's why the back part is easier to see
My pot's surface needs some cleaning it seems