[qatarstamps]

Hello,

I was wondering if anyone could tell me if these are genuine overprints? Any help is greatly appreciated. Thanks in advance.

[Skalikas]

same question :

[Audrius]

Welcome to the forums, Skalikas.

Unfortunately, we don't have the in-house expertise to help you with the overprints of Central Lithuania. These overprints need to be expertised, I suggest contacting Chris Ceremuga http://lithuanianphilately.com/experts" onclick="window.open(this.href);return false;

[adambrut]

@Skalikas

These overprints are simple forgeries made by a collector from Poland. You may easily recognize them as they have Lithuanian postmarks different from those used in Central Lithuania.

@qatarstamps

You have acquired a very nice set of Central Lithuania overprints.
Please see the scan below.

Stamps marked with a green dot have genuine Vilnius 1 postmark. You can be 99% sure they have genuine overprints as well.

Those with a red dot have a forged Vilnius postmark that you may recognize by a flattened shape in a place marked with an arrow. However, overprints may be still genuine.

Finally, stamps with a yellow dot are impossible to be checked using this small scan only as they haven’t got any other hints.

I suggest contacting Polish Philatelists union expert Janusz Berbeka whose signs and descriptions on different stamps from this issue are quite popular in Poland. You may find his mail in the list below:
http://zgpzf.pl/pliki_mr/lista_ekspertow_3.jpg

Example of his Mark:
http://images37.fotosik.pl/1340/d532805d6184bb38.jpg

Good luck!

[Audrius]

Very useful comments, Adam. Thanks for pointing out the flattened calendar-type postmarker frequently found on stamps with fake overprints.