OST kopecks - fake or genuine ones?

Dear numismatists,
I have three OST kopecks. I think 1 kopeck is a fake (dots on surface, and very good state), but I don't know about others. Are they fakes? Pics below.

Check this website : http://forum.tpzn.pl/index.php?topic=8269.0

http://www.coinpeople.com/topic/34338-occupation-ost-iron-123-kopecks-1916-pcgs-beware-of-fakes/

As far as i know its hard to get them in good grade.
Regards,
Damian

Цитата: "doc_man"​Check this website : http://forum.tpzn.pl/index.php?topic=8269.0
​
​http://www.coinpeople.com/topic/34338-occupation-ost-iron-123-kopecks-1916-pcgs-beware-of-fakes/
​
​As far as i know its hard to get them in good grade.
​Regards,
​Damian

​Dziękuję za odpowiedź. Otrzymałem odpowiedź własnie na polskich forach - 3 kopiejówki są ok, a ta jedna jest (najprawdopodobniej) wybita stemplem mocno zużytym oraz na dodatek doprawiona chemicznym czyszczeniem i szorowana.

Thanks for response. I've already got a response on polish forums. 3 kopecks coins are ok. 1 kopeck is probably okey, but is stroked by old/rusty stamp and someone cleaned it improperly.

These coins are faked with really good quality and it is quite hard to ID.... Be careful

Цитата: "Grinya"​These coins are faked with really good quality and it is quite hard to ID.... Be careful

​I know. Diameter are ok,these are magnetic also. Users from other forums told that 3 kopecks are ok,and 1 kopeck is probably genuine.