The obverse
Dan Thorne effigy of King Charles III
The obverse carries the Dan Thorne effigy of King Charles III, together with Australia, the 2026 date and the AUD $1 denomination.
The 2026 issue
2026 in the annual Koala sequence
This dated Brilliant Uncirculated issue is the 20th coin in the 2007–2026 standard one-ounce sequence.
Its reverse depicts koala perched in a eucalyptus tree with a leafy branch in its mouth. The reverse designer is not conclusively attributed in the sources listed below.
The published figure is a maximum of 300,000; no final declared total is shown.
- Series position
- Annual issue 20 of 20
- Obverse portrait
- Dan Thorne effigy of King Charles III
- Mintage record
- 300,000 maximum
01
02
03
Design story
The 2026 reverse: Koala perched in a eucalyptus tree with a leafy branch in its mouth
The annual reverse presents koala perched in a eucalyptus tree with a leafy branch in its mouth. The reverse designer is not conclusively attributed in the sources listed below. The issue also includes micro-laser engraved letter within the reverse design.
The reverse
Koala perched in a eucalyptus tree with a leafy branch in its mouth
The reverse depicts koala perched in a eucalyptus tree with a leafy branch in its mouth. Current dated mainline issue, scheduled by The Perth Mint for release on 6 May 2026. The issue also includes micro-laser engraved letter within the reverse design.
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
- .9999
- Metal
- Silver
- Diameter
- 40.9 mm
- Thickness
- 3.5 mm
- Finish
- Brilliant Uncirculated (BU)
- Authentication
- Not documented in the listed item-level sources
- Legal-tender country
- Australia
- Mint
- The Perth Mint
- Obverse portrait
- Dan Thorne effigy of King Charles III
- Obverse artist
- Dan Thorne
Mintage & issue
300,000
MaximumThe published number is a maximum production limit. A final declared mintage is not currently listed.
- Maximum mintage
- 300,000
- Issue status
- Maximum
- 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.
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.
- Australian Koala 2026 1oz Silver Bullion CoinThe Perth Mint · 2026-08-13
- Upcoming bullion coin releases — 2026 Australian Bullion ProgramThe Perth Mint · 2026-08-13
- 2026 Australia 1 oz Silver Koala BUAPMEX · 2026-08-13
Image credit
Obverse and reverse images: APMEX · 2026 standard 1 oz BU coin.