Armenian post of Nagorno-Karabakh
Date of Issue: 25th May 2020
two stamps (2x 400.- AMD)
those two stamps are issued in mini-sheets of 10 stamps
those two stamps are issued in a mini-sheet of 10 stamps (5 of each)
: the stamps issued by the Republic of Artsakh
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.