An old beer label info ?

Hi all, I recently purchased an old beer label; Aorangi Old Styled Beer and it was bottled specially for the Hermitage,Glencoe Lodge and the Twizel Tavern. It was brewed at the New Zealand Breweries in Christchurh. On It is a drawing of Mount Cook and a skier. I'm curious to find out the age of the label and any other info. Many thanks in advance, and cheers for now, Gary.