It’s cut off at the top, but it looks like the Bomford document has the 1936 version of the arms (with supporters*). The shield of the 1936 version (ie: without supporters) is here:
http://www.ngw.nl/int/aus/southaus.htm
The 1984 version would not be on a document printed in 1964.
*Supporters are the animals or people to either side of the shield in a set of arms.
The center part does look like that 36 shield.