Australia 50 Cent 1972/1975/1979/1983 (Four Coins) Circulated

Title:  Australia 50 Cent 1972/1975/1979/1983 (Four Coins) Circulated
Country: Australia.
Year: 1972, 1975,1979, 1983.
Metal: Copper Nickel.
Coin Denomination: Fifty Cent Coin.
Diameter: 31.5mm.
Weight: 15.5g.
Thickness: 2.5mm, smooth edge.
Obverse: 2nd portrait of Queen Elizabeth II facing right wearing the Girls of Great Britain and Ireland Tiara Lettering: ELIZABETH II AUSTRALIA 19xx
Engraver: Arnold Machin
Reverse: Australia coat of arms the escutcheon is carried by a red kangaroo  and an Emu and the numeral "50".Designer's mark "SD" below. Lettering: 50 SD
Engraver: Stuart Devlin
Info: First Dodecagonal 12 sided 50 cent coin.
Condition: VF-30 (Good Very Fine) Legends are clear, devices show all detail with little wear; high points are lightly worn.
Price: R 80.00 Inc Vat for Four Coins.

(All pictures are of coins that are taken by my camera, differences in appearance are only due to different positions of the coin within the lightbox. Lighting can make a big difference in the outcome of pictures, I do not use picture editing to make any changes.)