Here is a scan of the Canada 1981 5c piece. You can see the difference in the hair where the arrows indicate. It is not so easy to differentiate the Wales and Canberra coins - the best way is to get coins from a RAM roll and an RBA roll and compare. The RBA roll should have Canada or Wales coins as all RAM coins were usually released in RAM rolls. The Canada coins will have the hair shown in the scan. If the hair is different, the coins are probably from Wales.

Here are scans of the Wales hair and text:


And here are scans of the Canberra hair and text:


As you can see, the differences between the Wales and Canberra coins are difficult to define. Generally speaking, I suppose you could say that the RAM coins have more definition - the lower hair curls in the Wales coins often lack distinct lines. However, as these images show, they can look very similar.
Hope this helps!
Edited by eccentric
10/29/2011 10:04 am