It's not the 1st class Australian Cricket team, but it appears the the older gentleman in the centre is a team manager, so possibly an organised tour. I have checked the voyage. Schedule of the SS Persic, noting it left Liverpool of the 26/7/1911 & arrived at The Semaphore, South Australia on the 4/9/1911. This postcard is date October 1911, so looks like a return voyage to Liverpool.
But its coming into the Winter months in the UK. Any way, its all speculation. Its a nice piece of Cricketana!
This is the buyers / importers responsibility. _gsrx_vers_853 GS 7.0.17 (853). This item is in the category "Sporting Goods\Cricket\Memorabilia". The seller is "hnco" and is located in this country: AU. This item can be shipped worldwide.