This is from a 1942 Perth coin and the dot appears larger, the centre of it starting at the left edge of the smaller denticle.
The bottom of the dot is just above the lower part of the Y.
This 1942 Perth coin shows the smaller dot which centre on the gp between the small and larger denticle.
The bottom of it is well above the lower part of the Y.
This 1942 Perth coin shows the dot centred at about the start of the small denticle much like the top image, but is slightly smaller in size.
The bottom of the dot is well below the bottom of the Y.
This 1943 Perth coin has a larger dot with the centre starting at about the left edge of the large denticle.
The bottom of the dot is in line with the bottom of the Y.
THis Perth 1943 coin has the larger dot centre well into the large denticle.
It is about level with the bottom of the Y as in the previous image.
This coin also shows some good diecracks through the Y.
This 1943 Peth coin has a smaller dot which is centred at about the left edge of the Y.
It is marginally lower than the bottom of the Y.
This 1943 Perth coin has the smaller dot centre starting at the right edge of the small denticle.
It is slightly lower again than the previous image as compared to the bottom of the Y.
This is a 1944 Perth coin which has the dot centre startin at the left edge of the small denticle.
The bottom of dot is approximately in line with the bottom of the Y.
This 1944 Perth example has the dot centre starting at the left edge of the large denticle.
It has the bottom approximately in line with the bottom of the Y.
This 1944 Perth coin has the dot centre at the left egde of the small denticle.
The dot is pretty much entirely beneath the bottom of the Y.
This 1944 Perth coin has the dot centre between the small and the large denticles.
The dot centre is higher than the previous image, lining up with the bottom of the Y.