Netherlands coins

Najelabr

I have a 1989 2 1/2 ECU and a 1989 10 ECU coin. Both coins are classed as FDC and come with authentication certificates.

These were minted in the Netherlands as, I believe, the precursor to the Euro.

Can anyone tell me a bit more about them and what their approx value would be.

Thanks

mrpotatoheadd

They're in "Unusual World Coins" but there are more than one of each for those dates listed.