Hello Ian, and thanks for your answer.
Whichever product Ornano was, it's gone and that's all. It was a generic sepia toner, and as such it behaved. I'm not looking for a xerox copy, just for another standard sepia toner.
I'm posing questions here because the Foma sepia toner does not behave like a "standard" sepia toner. It lightens the shadows, or so the fact sheet says. As it is not a "normal" sepia toner, does it prolong life expectancy of photos like sepia toners usually do?
Does Tetenal sepia toner do? Is it a two bath? Their fact sheet is so poor they didn't even write if it's two- or monobath. Did anyone try it?