12th Australian Light Horse (Tasmanian Mounted Infantry)

[Tony B]

Hello all,
I'd like some help to find out more about this badge. I gather from web info that it could be fairly scarce. Also is it classed as a Colonial Badge?

It's brass and approx. 62mm high x 50mm wide.

Was it a cap or a helmet plate? It has east, west lugs but there also appears to be what could be a missing fixing point at the top. Not sure about it as it doesn't look as if it was broken.

Any help appreciated.
Tony.