Ist diese Schale Wertvoll? Und echt?

Hello, the bowl will be real, but not by Sèvres. Probably the brand isn’t even from Edmé Samson, it’s too new, almost graphic. This brand at Sèvres with the S would be of 1771, but the brands did not look like that 250 years ago.

There are unfortunately many types of this imitation brand. But maybe the bowl is pretty and you continue to use it or give it away.

Follow the photo.

That’s about what I expected, a punk bowl in Sèvres style. It also fits to the rococo, if it were from Sèvres, which it is definitely not.

Here is a piece of Sèvres from the 18th Century. Look at the picture with the brand. https://www.antikeo.com/en/katalog/porzellan/porzellanformige-stucke/bassin-en-sevres-monte-mitte-des-18-century-29065

So again clearly my answer. Your shell is unfortunately not from the Manufacture de Sèvres.

It is and was worked very much porcelain in Sèvres style. Look here: Porcelain Sèvres Style

But the pieces are called honestly. A large part of the pieces offered as Sèvres are not by Sèvres. Among them are pieces with exactly your brand.

Here is an ashtray with your brand, which is about 1980. I don’t know if this is the case, but the appearance of the brand fits in time. https://www.1stdibs.com/de/m%C3%B6bel/serviergeschirr-ceramic-silber-und-glas/ash-becher/porzellan-as-becher-aus-den-1980er-jahr-mit-pfen-am-boden/id-f_33654162/

Here is a link that interests you with certainty: https://www.antichitailtemporitrovato.it/index.php?pag=201 Here you can see an object like yours, with an indication of Edmé Samson, but unfortunately you do not show the mark on the floor. But Samson doesn’t match your brand.

Of course, it can be that the original design of your piece is by Sèvres or Samson. The porcelain popists are now working with “Korpus scanners” because copying the form with all the details goes very quickly.

I can’t say anything about value, as well, we don’t know anything about your piece. Unfortunately, there are no comparisons. If it were from Sèvres or Samson, it would look different.