An Australian 1939 bronze Halfpenny (KG V)(old C of A reverse), uncirculated and in absolute mint condition could fetch up to $175 AUD. If it has been circulated but still in good condition, it might fetch anything from $0.50 to $22 AUD.
There were 4.670 million minted.
An Australian 1939 bronze Halfpenny (KG VI)(Kangaroo reverse), uncirculated and in absolute mint condition could fetch up to $1,550 AUD. If it has been circulated but still in good condition, it might fetch anything from $18 to $215 AUD.
There were 0.782 million minted.
A reputable coin dealer will be able to give a more accurate valuation.
There were was no Australian 1956 Halfpenny minted.
The last Australian Halfpenny was minted in 1964.
The last Australian Halfpenny was issued in 1964.
The last Australian Halfpenny was minted in 1964.
The Royal Australian Mint produced no Australian Halfpenny coins from 1956 to 1958 inclusive.
The Royal Australian Mint produced no Australian Halfpenny coins from 1956 to 1958 inclusive.
There were no Australian 1937 Halfpennies minted.
The rarest Australian Halfpenny is the 1916 (mule) coin, the 1923 coin is rare, and 1915, 1918 and 1939 (kangaroo reverse) coins are considered to be scarce.
There were no Australian Halfpennies minted from 1956 to 1958 inclusive.
There were no Australian Halfpennies minted from 1956 to 1958 inclusive.
A 1944 Halfpenny with a sailing ship on the reverse is a British Halfpenny.All British Halfpennies from 1937 to 1967 featured Sir Francis Drakes "Golden Hind" on the reverse.All Australian Halfpennies from 1939 to 1964 featured a kangaroo on the reverse.See the link below.
There is no Australian 1921 Halfpenny with a spurious "E" on it. You may have a genuine oddity. A reputable coin dealer will be able to assist with verification and give a valuation.