The main captions seem to be in Russian and Belorusian, but for some reason this part is in English:  “The card was prepared with the participation of the Museum of Aviation Technique (Baravaya village of Minsk region)”.  Two cards are available.  One was mailed in 2012 with stamp and clear postmark (Grade: 1, $4).  The other was also mailed, with M stamp and borders, and Priority chop, but no postmark so we must assign (Grade: 4, $2).