In 1988, the Reserve Bank of Australia issued $10 notes in plastic. The polypropylene polymer banknotes were produced by Note Printing Australia, to commemorate the bicentenary of European settlement in Australia. These notes contained a transparent "window" with a diffractive optically variable device (DOVD) image of Captain James Cook as a security feature. Australian notes were the first in the world to use such features. All current Australian notes also contain microprinting for further security.