Today I found the following website:
http://www.moravia-europe.eu/en/products/?id=494-aba10
I've never before heard of this 'Fiamo ABA10' calculator, and it's almost identical to the TI-BAII plus financial calculator.
Since the same site is also reachable from the following link
http://texas-instruments.de/en/products/?id=494-aba10
I'm quite sure that it is indeed just a clone of this BAII plus.
And what's even more interesting: you can download an emulator for this calculator from this website!
I was looking for a BAII plus emulator for a long time and finally there is it - great! :-)
Franz