1915 Aussie 1 Penny Please help me grade :)

on the obverse, one clue is to count the pearls on the King's crown: at best, you'll see eight.
There are other factors, but that's an easy starting point.

I cannot understand why this coin is valued so low
when in the US in 1915 there were about 56 million cents made and in Canada there were just under 5 million cents made.
This one has a mintage of less than 1 million
Go Figure.
Still a collectible coin and well worth hanging on to, even if it is low grade

I totally agree with that but there is an increasing awareness worldwide of the low mintage coins we have to offer here.
So I suggest that every Aussie gets their sets ( especially the pre Decimal) up to scratch before all our good coins head overseas and the costs go up exponentially to acquire these coins