Denice, unfortunately, the Cobbers are long gone. As far as I am aware, their last recordings were made in the 1980s. I do not know of any reissues. Bob Bolton (a Mudcatter who is very knowledgeable on Australian bush music) may well be able to give you some information and perhaps advise about current groups of similar style. If you become a member of Mudcat, you could send him a personal message. In any event, he will probably see this thread.

The instrument you refer to is called a lagerphone.

--Stewie.