The Austrian one you think is worth a few hundred Euros
is Michel 404
There is the common variety 404A
with perforation 12 1/2
and then there is the expensive one 404B
with perf 11 1/2
Most of the lower values were issued in both perfs but the
high values 2000Kr to 10,000Kr were only issued perf 12 1/2.
It appears that you don't have a perforation gauge but that's
OK. Try this.
Just place your 1000Kr directly over either your 2000Kr or 3000Kr
If the perforations match and line up then you have the cheaper
perf 12 1/2
If they do not line up at all then maybe you struck it rich.