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Australia Type I

1966 Wavy 2 baseline Twenty Cent reverse 1966 Wavy 2 baseline Twenty Cent obverse

1966 Wavy 2 baseline Twenty Cent

Figure shared with:
Sans Gap
Mint:London Monarch:Elizabeth II Reverse Designer:Stuart Devlin Obverse Designer:Arnold Machin Size:29mm Weight:11.31g Edge:Reeded Composition:75% Copper
25% Nickel


Sales History


The 1966 wavy two baseline twenty cent is a rare variation of the London mint 1966 twenty cent featuring a curved, or wavy baseline of the 2 in 20 as in the photo below.

Wavy 2 Wavy 2

Standard 2 Standard 2

While it is estimated that several thousand of these coins were produced, being detected at a much later date resulting in very few examples surviving in higher grades creating one of decimal coinage's most prized rarities.

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