Dear
D Lee,
It seems Hermes started imprinting "Made In Vietnam" on the back of the Lift pendants about a year ago. My first two (my black and white) are both free of the imprint, while the green one I just purchased, does have "Made In Vietnam" on the reverse.
I was dismayed when I saw that they'd begun doing this. I certainly don't mind that they wanted to add this notation to the pendants, but do wish they could have done so in a more discreet and elegant way. :wondering If I do wear my green pendant with the reverse showing, one would have to be quite close to read the small print, and part of it is obscured by the cord...so I wouldn't hesitate to wear it this way. But I do understand how you feel, and wish it wasn't there at all!
I did notice that on the other two green ones I had to choose from, the reverse side of both had darker horn coloring, and therefore the imprint was harder to see. I just preferred the one I chose, for its overall aesthetic, so am choosing to overlook the imprint issue!

Perhaps the marking is less noticeable on yours to others, than you think it is? Maybe try each of your pendants on, with the reverse showing, and stand a reasonable distance from a mirror. Perhaps on at least one of them it's less noticeable? Hope this is all helpful in some way!