Western Australian X Series Number Plates - WA Retro Plates

There are avaiable from the Western Australian Licencing Centres Retro Number Plates for the U, X, and 6 to 9 series number plates.

I have a 3/77 built Holden Gemini with 80's 7IR ### Black on Yellow number plates.

I want to get an X** ### black on white number plate for registration about August 1977.

I am compiling a list of as many X** ### plates and thier months and years of registration as possible so that an X plate can be dated month by month.

So far I have

3/77 built Holden Gemini XOZ ### for August 1977 Registration.
XHZ ### for May 1977 Registration


12/78 built Holden Gemin 6AM ### for July 1979 Registration
2/79 built Holden Gemini 6AS ### for August 1979 Registration

The X plates are black on white for Perth Western Australia in 1977

The 6 Plates are black on yellow for Perth Western Australia in 1979

I have seen on the Torana forum a discussion of plates and have other plates listed on the forum by West Australians but they have no month of registration and so can not easily be dated.

Could the Western Australians who have 70's vehicles please list out the cars, thier build dates (on plates stamped with this in their engine bays), thier plates and thier years months of registration ?

Thanks