Standard:Casio FX 991 DE X Scientific ClassWiz Calculator + WYNGS Protective Case Red + CALCUSO Expanding Warranty : Amazon.nl: Stationery & Office Supplies
Casio FX-991DE CW ClassWiz Technical Scientific Calculator with Art Case "Runner", German Menu Guide (Limited Edition): Amazon.co.uk: Stationery & Office Supplies
Casio FX-991DE CW ClassWiz Technical Scientific Calculator with Art Case "Runner", German Menu Guide (Limited Edition): Amazon.co.uk: Stationery & Office Supplies
Casio FX-991DE Plus Scientific Calculator with Natural Display (German Product) : Amazon.de: Stationery & Office Supplies
Casio FX-991DE CW ClassWiz Technical Scientific Calculator with Art Case "Runner", German Menu Guide (Limited Edition): Amazon.co.uk: Stationery & Office Supplies