Was ist das für eine Münze welche Währung ist das. Ist das ne Sammlermünze?

2 Bulgarian Leva = about 1 Euro.

They are (still) shaped for circulation, as Bulgaria is striving to introduce the euro, but because of the enormous inflation it is not yet possible.

But even if the Leva can no longer be used as a means of payment (i.e. in the further future), an increase in value is not expected in decades.