Many thanks
Rod for your time and these great information

. I have tried that link but unfortunately could not open it in China, if you can quote some information of WA from there, I will send you that auction in totally free if you still take the lead to the end

.
Yes
Tony, I am also a member named stampway on StampBoards, for Australia information I always begin from there, last night I have searched but using "perforated with initial of States" as a keywords, only got few results. Today I used your way as keywords and got
600+ results on there

, will continue to learn in the next few days.
Thanks again
Rod and
Tony for your time and helps.

ZhangCheng