Australian 50-Cent Piece (Dodecagonal)
Country of Origin: Australia
Year of Issue: Post-1969 (standard design used across several years)
Denomination: 50 Cents (AUD)
Composition: Cupro-nickel (75% copper, 25% nickel)

Brief Description
A twelve-sided (dodecagonal) coin featuring the Australian Coat of Arms supported by a kangaroo and an emu, with the number '50' at the bottom.
Historical Significance
Introduced in 1969 to replace the round silver 50-cent coin, which was often confused with the 20-cent piece and became worth more than its face value due to rising silver prices. The Coat of Arms design represents the federation of Australian states.
Estimated Value
$0.50 - $2.00 AUD (dependent on year and condition; most circulated copies are worth face value)
Care Instructions
Avoid cleaning with abrasive chemicals as this can damage the surface and reduce collector value. Store in a cool, dry place within a PVC-free coin holder to prevent oxidation.
Created At: 2026-03-22T20:36:31.549771