His coin has Melbourne mint characteristics. I'm not aware of a dot after the Y variety for the 1940 but after looking through my photo archives I came across this coin which has the dot in roughly the same place:

It's possible bkh's coin has post-mint damage and this one is just a tone spot, but if it is a variety it's much scarcer than the KG.
Either way both coins came out of the Melbourne mint.

It's possible bkh's coin has post-mint damage and this one is just a tone spot, but if it is a variety it's much scarcer than the KG.
Either way both coins came out of the Melbourne mint.























