Greece Unknow Surcharge On Iris

Good morning
In the Yvert Tellier catalog on Greece, I cannot find this overprint on IRIS 2l red N° 180. stamps dated 1911-21.

Hi Antoin,
Script Opt is Thrace
Administration of Western Thrace
I don't have an example with the other opt as well

Base stamp is Sc # 234 1916 A25 2 lepta

try THRACE Sc # N27 1920 A25 serrate roulette 13 ½ Litho.
...or, N38 (If engraved)

Thank you very much rod222.
An image on the internet: https://www.lastdodo.fr/fr/items/13...c-surcharge.

In fact there are two overloads. The 1st is the crown on yt 195. I made a mistake the starting stamp is not the yt 180 which is engraved but the 195 which is lithographed.
with this first overload it becomes the number yt 272.
To this stamp we add the surcharge for Thrace.
On my copy, this second overload is too low and mixes with the first overload.

Appears to be Thrace (Greek occupation) SG 82, YT 76 (1920)

Good to see you sorted.
I had not seen this stamp before.
Correction on link
https://www.lastdodo.fr/fr/items/13...ec-surcharge

I see this stamp without the first surcharge. It's sold as a forgery.
But can this stamp exist without the first surcharge. If not, its a very bad forgery.
https://www.delcampe.net/fr/collect...7748312.html

Possibly one of the worst forgeries I have met with.