I just wanted to attach some other samples of these "Stamped paper" used from a long date in France, and maybe in other countries.
This is how mint ones look like (year about 1880) :
There is a watermark ( Oval on this one "PAPIER TIMBRE" with in in centre year 1880).
This stamped paper was used by notaries for transactions depending on the value in question, here it's from 100 Francs and more.
In addition of the stamp there is a control "Relief stamping" under it. It indicates "Enregistrement Timbre et Domaines" with the value of the stamp 5 cents.
Here are details of the "Stamp" :
This is a sample of this type of stamped paper, many types of paper and stamps exist.
Very old ones are more attractive specially when they are unused, like this one coming from south of France "Bigorre" I think in late years 16xx, it has also a watermark with "Fleur de Lys" the royal emblem for this period :
I am not a specialist of these stamped papers, in fact I don't collect them, I got them as curiosity items.
Here are more scans of these items I have in my albums :
If there is any interest I can make more detailed scans.