It has what looks like an Australian property mark on the left side of the receiver ring---a "D" with an ^ inside. There is also a possiblr number stamped on top of the receiver ring (1-7)----an Australian "Military District" number.
If both of these are present, there will be what looks like a second serial number on the right side of the receiver ring, above the original serial number/letter prefix. This will be the inventory number for the Military District.
If this information is repeated on the right side of the buttstock, if serial numbers match, if the bore is bright and the wood is sound, $350 is not out of line in the USA,
I've got four of them and would not part with one for less.
If I am not seeing things and this is a rifle with an Aussie connection, let us know and I will bore you with the story of how a British rifle wound up in Oz.
-----krinko