2011 Australian Silver Koala 1 oz Bullion Coin

The 2011 issue

2011 in the annual Koala sequence

This dated Brilliant Uncirculated issue is the 5th coin in the 2007–2026 standard one-ounce sequence.

Its reverse depicts mother koala and joey among eucalyptus branches. Elise Martinson is credited with the reverse design.

The official final mintage is 910,480. This mint-to-order issue has no published fixed maximum.

Series position: Annual issue 5 of 20
Obverse portrait: Ian Rank-Broadley effigy of Queen Elizabeth II
Mintage record: 910,480 declared · mint-to-order

2011 Australian Silver Koala 1 oz bullion coin reverse — 2011 standard reverse

Design story

The 2011 reverse: Mother koala and joey among eucalyptus branches

The annual reverse presents mother koala and joey among eucalyptus branches. Elise Martinson is credited with the reverse design.

2011 Australian Silver Koala reverse detail: Annual composition — **Annual composition**A closer view of the 2011 koala design.

2011 Australian Silver Koala reverse detail: Date and silver legend — **Date and silver legend**The surrounding legend identifies the 2011 issue and its silver specification.

2011 Australian Silver Koala 1 oz bullion coin obverse

The obverse

Ian Rank-Broadley effigy of Queen Elizabeth II

The obverse carries the Ian Rank-Broadley effigy of Queen Elizabeth II, together with Australia, the 2011 date and the AUD $1 denomination.

The reverse

Mother koala and joey among eucalyptus branches

The reverse depicts mother koala and joey among eucalyptus branches.

Full specifications

At a glance

Available dimensions, artists and issue details for this annual coin are listed below.

Denomination: AUD $1
Silver content: 1 troy ounce
Fineness: .999
Metal: Silver
Diameter: 40.6 mm
Thickness: 2.98 mm
Finish: Brilliant Uncirculated (BU)
Authentication: Not documented in the listed item-level sources
Legal-tender country: Australia
Mint: The Perth Mint
Obverse portrait: Ian Rank-Broadley effigy of Queen Elizabeth II
Obverse artist: Ian Rank-Broadley
Reverse designer: Elise Martinson

Mintage & issue

910,480

Declared

The declared total is the published final number for this mint-to-order issue; no fixed maximum was published.

Declared mintage: 910,480
Issue status: Declared
Source date: 2026-08-13

This year in the series

See the design in sequence

Compare this coin with the annual designs immediately around it.

2009 Australian Silver Koala 1 oz bullion coin reverse

2009Koala seated on a tree branch against a faceted fieldOpen annual reference

2010 Australian Silver Koala 1 oz bullion coin reverse

2010Koala on a branch eating gum leavesOpen annual reference

2011Mother koala and joey among eucalyptus branchesCurrent coin

2012 Australian Silver Koala 1 oz bullion coin reverse

2012Sleeping koala stretched along a tree branchOpen annual reference

2013 Australian Silver Koala 1 oz bullion coin reverse

2013Koala seated in the fork of a eucalyptus treeOpen annual reference

Sources

References for this annual coin

The references below cover the coin's specifications, design, mintage and annual context.

This catalog excludes proof, high-relief, gilded, colorized, privy-mark, graded, fractional, 2 oz, 5 oz, 10 oz and kilogram products unless mentioned only as related variants.

Image credit

Obverse and reverse images: APMEX · 2011 standard 1 oz BU coin.