Actually not so good, I started to worry about the title
USA: 1 dollar 1876, km108, 2 types of obv.s & rev.s / double die
and I still haven't figured out what I meant with the two small "s"? I tried to have a look in USAC... and then saw, that I missed one combination, see this:

So now graphic looks like this, but the "s" are still there?

What to do with those "s", do you have an idea?
Globetrotter
Coin varieties in French:
https://monnaiesetvarietes.numista.com