Fichier:Roman Coin, Denarius of Domitian and Vespasian (plated copy mule) (FindID 478025).jpg — Wikipédia
One Dollar Australian Mule Coin 2000 - The Right Note
Mule error brings $192,000 - Numismatic News
19th known double denomination mule error coin coming to auction
Rare Australian mule $1 coin selling for more than $4000 | 7NEWS
beekar-the-numismatist: >> THE MULE COINS OF REPUBLIC INDIA
2000)-P SAC$1 Mule w/ State 25C Obverse (Regular Strike) Sacagawea Dollar - PCGS CoinFacts
Rare Australian $1 Mule Coin Sells for More Than $4000 Due to Royal Australian Mint's Mistake! (See Pictures) | 👍 LatestLY
Thought I had a 1944 Jefferson mule! | Coin Talk
Up to 6,000 $1 Australian mules released into circulation | Daily Mail Online
Australian $1 One Dollar 2000 Mule Coin Error Coin | eBay
Balmain Mule Coin Glossy Leather Black | Mule
Famous Sacagawea Mule Dollar Coin Error to be Auctioned by GreatCollections - GreatCollections
Australia 2000 $1/10c Mule Error PCGS AU53 - The Purple Penny
1959-D Lincoln Cent “Mule” Hits $50,000 - Numismatic News
Canadian Mule Coins
2 Rupees 2008 Noida Mule Steel - Indian Coins and Stamps
Dollar quarter mule error count climbs to 17
When is a coin a mule?
$1 2000 Mob of Roos Error 10c Mule - Wynyard Coin Centre – M.R.Roberts - Wynyard Coin Centre
What is a mule error coin and what are the most famous examples?
2014-D $1 Sacagawea/Presidential Dollar Mule, Discovery Coin, AU58 | Lot #5089 | Heritage Auctions
