Can Anyone Please Help Me Indentify This Stamp?

Can anyone please help me indentify this stamp?
http://www.antic-shop.ro/antichitat...-cu-ulciorul

the one with 50c on it.

But, first of all, I must say hi to all!
My name is Mihai and I'm from Romania.
I'm a new member here (so sorry if this isn't the right place to post my question) and I'm new in the domain of stamps.
I have 2009 Scott stamp catalogue and I've just learned a little from it.
I must say that I am not able to find a stamp in it. I mean, untill now, I haven't found anything from my stamps/the stamps that I have.

I have the stamp in link I had post earlier. And I am trying to find it in the Scott stamp catalogue. Something, I did find, but I am not sure, so I'm asking for help, please.
On that link it says that that stamp sells for 6000 euro and I am in doubt that this is right. This is why I'm trying to find it in the Scott catalogue, so I'll see it's price there.
Anyone can help me please?
What is the number of the stamp in the catalogue?

Thank you in advance!


P.S: I have looked on another link with rare france stamps. there are 2 stamps similar with the one I'm looking for but not that one(the 50c red one). So it is not a rare stamp after all. ? ! ? !
This is the link with rare france stamps:
http://www.sandafayre.com/rarestamp...estamps.html

Looks like Scott #146, and welcome to the Forum.

Hi Michai,
also a warm welcome from me - that is from Germany. The stamp you show is difficult to find in a catalogue for France.
Why: The original stamp from France was overprinted. It was then used in the Memel region which was separated from Germany after World War I. It is now part of Lithuania.