Sean has subtly reminded me that I intended to contribute to this forum, so here I am. I must admit to a degre of nervousness; when I compare myself to the excellent arborists out there I don't feel like I've much to contribute. Perhaps I should be comparing
them to some of the awesome veteran trees around the place to get a sense of perspective.
In any case, during my travels I came across a fantastic
Eucalyptus camaldulensis, next to Oibell Drive and the historic railway bridge in Gundagai. As seems frequently to be the case, the tree does not look so large and impressive on Google Earth images as some other - evidently younger - trees, but up close it is truly awesome.

As you can see, the canopy of the veteran (indicated by red arrow) is not as broad as some of the other local trees. It does however have significant features of veteranisation, including previous loss of apical stem, canopy senescence, and substantial hollowing.
I couldn't begin to give an accurate assessment of the tree age, and I'd be guessing if I said it was probably at least as old as the nearby railway bridge (also visible in the google shot), which was built in 1902.
I'd be interested if anyone happens to have old photos that might feature this tree - or indeed the location without the tree - in order to provide a more accurate age range. I've contacted to Gundagai library for some more leads. In the mean time, here are some pictures of the tree up close.

