Obverse
Portrait of the Queen Elizabeth II in the field of the coin.
Lettering: ELIZABETH II
AUSTRALIA 2006
IRB
Reverse
Duckbill Platyus and value.
Lettering: 20
SD
Extended information
Denomination
Currency
Metal
Krause catalog
KM# 403b
Ruler
Weight
24.56 g.
Diameter
28.52
mm.
Thickness
2.5 mm.
Subject
Federation Centennial
Alignment
Medal ↑↑
Shape
Round
Edge
Reeded