This year the Tajikistan post addresses again to a subject of protection of the wild nature. On April 22, 2013 is introduced into  circulation a set of 4 values with logo WWF - Fund of protection of the wild nature. The issue is devoted to the small but quick animal of family of the marten the Mountain weasel (Mustela altaica). The animal meets mainly in the mountain regions of Asia: in Tajikistan, Russia, Kazakhstan, Mongolia, on Tibet and in Northern India.

The issue is printed in perforated and imperforated version in 4 mini sheets of 10 sets with decorating margins. And also in blocs of 4 values in collective sheetlets of 4 sets.

The mountain weasel lives in mountain areas in the stony tundra or the forest-tundra with separately growing trees.  Weasels suit holes in rocky caves, hollows of trees, and also to lodge near housing of the human.
Mountain weasels belong to protected species in India, and also they are brought in the Appendix III of the Convention of CITES.