Twenty cent 1991 - Not intended for circulation
The 1991 Royal Australian Mint proof coins set was presented in a clear acrylic case with brown folder used for protection. A very small amount of sets (100 out of 64,522) were packaged with the 1991 Singapore Coin Convention box.
Most years since 1966, the Royal Australian Mint has released a proof set containing proof examples of Australia's circulating coinage. Proof coins have a different and more refined manufacturing process than circulation coins. The dies are polished to give a cameo-like/mirror-like or matte finish.
In 1991, the 50 cents coin original design was replaced with the 25th Anniversary of Decimal Currency one for circulating and proof coins.
In 1991, the Royal Australian Mint produced a complete sterling silver set called masterpieces in a black box for the Jubilee, including the 50 cents 25th Anniversary of Decimal Currency design.
Twenty cent 1991 value
The value of a Australian coin depends on several factors such as quality and wear, supply and demand, rarity, finish and more.
- PR
- NBU
| Variety | PR-64 | PR-65 | PR-66 | PR-67 | PR-68 | PR-69 | PR-70 |
|---|---|---|---|---|---|---|---|
| 1991 | £9.30 | - | - | - | - | £14.40 | £30.90 |
| 1991 - Silver | £7.10 | - | - | - | - | £18.00 | £43.00 |
| Variety | NBU-64 | NBU-65 | NBU-66 | NBU-67 | NBU-68 | NBU-69 | NBU-70 |
|---|---|---|---|---|---|---|---|
| 1991 | - | - | £10.90 | £12.20 | - | - | - |
NBU (Numismatic Brilliant uncirculated): Coins not intended for circulation struck and sold by the Mint, often in a special package. For most NBU certified coins, they are attributed the MS grades, unless a circulation coin wasn't produce for that particuliar combinaison of year, denomination and design. While not quite non circulating legal tender it is not too unusual to find coins intended for mint sets in circulation.
While these coins might bear the same design as normal circulating coins their lustre and quality of strike sometimes makes them stand out from the norm.
View the average prices of certified Twenty cent 1991 sold at auctions »
Varieties and features
Twenty cent 1991 - Silver
Mintage
- Twenty cent 1991 : Included above - (64,522 proof)
- Twenty cent 1991 - Silver : 24,951
Last update : Sunday, September 14, 2025
