Although you wouldn't know it from the way the old bottle looks when it is full, the glass is green as opposed to the clear transparent glass of the young one.
Front label scan from a post-2004 bottle. Note the difference of typographic position of the two O's in "ROOD". Also, the gold-coloured embossing, particularly around the "Plantinga" logo, is less pronounced. The rear label mentions that it has been made in Leeuwarden since 2004 (at Boomsma) and the text is quite different from earlier. And a different barcode, of course. Scans made possible by Boomsma.