These are from the EX Sandstorm set, not EX Ruby & Sapphire, though.
So I’d assume all German EX Sandstorm cards have ©2003 and all Italian EX Sandstorm cards have ©2004?
Or have you found any German EX Sandstorm cards with ©2004 or Italian EX Sandstorm cards with ©2005, which would potentially originate from the EX Battle Stadium Trainer Deck Kits?
I also just made this thread with basically the same underlying question: do German/French/Italian/Spanish/Portuguese EX Ruby & Sapphire cards with different copyright year exist? Origin of ©2005 e-Reader Energy Cards without e-Reader bar?
Greetz,
Quuador