Dragonflys complete serie of stamps

I received a cover with complete serie of a stamp issue. This serie is first issue of stamps showing dragonflies found at forest stream. The serie was issued on 11th of October, 2000. The cover is a litlle bit damaged, but it is OK, as I really like these whole set of stamps covers
The cover has clear postmark of sending (11.1.12) and receiving (16.1.2012).