Austro-Hungarian Balkan Mobilisation Cross 1912-1913. This medal was awarded to soldiers of the Austro-Hungarian Army who were called up to serve with their units during the regional crisis sparked by the two Balkan wars of 1912-13. 
If you dont have it in yours collection yet,and you are collecting or planning to become a collector of these militaria, this is the item you will wish to have it.
The medal is a gilt Leopold cross, the ends of which are slightly curved inwards, with an eyelet and loop for ribbon suspension