The Australian WATTLE was laid over the (1RNZIR) GREEN side,

NZ FERN was laid over the (2RAR) BLACK side.

Signifying the joining of the two units. We became known as the ANZAC Battalion in early 1968
 before 2RAR were replaced by 4RAR mid year.

It is important that this is how it is described because the Fern is usually on Black for New Zealand

and the Wattle is usually on Green for Australia, but that is not the case in this design.