AusBonsai

G'day all
thank you for the help guys, i think ill go with curry plant, and if dont flower then ill think again, for now this tree is getting used to a pot. then ill think about styling when it has shown strong growth. I am also very giddy at the prospects for this amazing find.
Once again thank you all for the comments if anyone can positively id it ill be happy to hear please

Just a quick dash out to the garden to have a close look at old curry plant, old rosemaries and an old coastal rosemary.
Yes it could be curry bush, the bark can look like that though I would expect the foliage to be greyer, and I am surprised it hasn't flowered (maybe too much shade?- the hint is 'under a mountain of foliage') Actually mine has some lovely old branches, hmmmm, maybe time to take cuttings and start a replacement for the garden while it comes to a retirement home in a small pot! The leaves are more spirally arranged tho.
Cant see it being coastal rosemary at all, just doesn't look right.
Still looks very very rosemaryish to me, there are citrus and differently scented ones I have heard of from Europe, never heard of them being grown in Australia tho. And I have quite old branches with shoots, thats not impossible, just not very usual.