Comic books/Alex - The cursed island3 messages

Have a question: Have a copy of the cursed island here.

Production date is 1973, but the print on the front is that of the 1985 version where alex lies in the sea and a fire-breathing statue is visible.

Does anyone know if this is a special version? I certainly do not find it on Catawiki or the net ..

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Thanks! very helpful information!