Date of Issue: 16th May 2012
two stamps (350 & 650.- AMD)
those stamps are published in mini-sheets of 9 stamps + 1 label
those stamps are published in a mini-sheet of 8 stamps (4 of each) + 2 labels
NOTE : the stamps issued by the Nagorno-Karabakh Republic aren't recognized on an international level, not by the UPU nor by PostEurop.
Those stamps are listed in most stamps catalogues (Gibbons, Yvert & Tellier, Michel) and most Europa stamps collectors collect those stamps even if they aren't official stamp issues.