Wanted: Australia signed jersey help

I recently purchased this here in the states and I do not have any info on it.

I did a little research without much luck. It looks like it originally had a plaque on the frame, but was taken off.

Any help is appreciated. Thank you so much!

https://flic.kr/p/2gd3YMo View: https://flic.kr/p/2gd3YMo


https://flic.kr/p/2gd4dNw View: https://flic.kr/p/2gd4dNw


https://flic.kr/p/2gd41SF View: https://flic.kr/p/2gd41SF