4 Doubles (Mule) 1830 front 4 Doubles (Mule) 1830 back
4 Doubles (Mule) 1830 photo
© Heritage Auctions

4 Doubles Mule

1830 year
Copper - -
Description
Issuer
Guernsey
Type
Pattern
Year
1830
Value
4 Doubles (1⁄480)
Currency
Pound (1808-1971)
Composition
Copper
Shape
Round
Technique
Milled
Orientation
Medal alignment ↑↑
Demonetized
Yes
Updated
2024-10-08
References
Numista
N#312698
Rarity index
97%

Reverse

Value, date

Script: Latin

Lettering:
4
DOUBLES
1830

Edge

Plain

Interesting fact

This coin is considered a rare and unique specimen among numismatists because it was minted with a combination of dies not normally used together. The obverse die is from a Pattern 4 Doubles coin, while the reverse die is from a regular 1830 Guernsey coin. This error, known as a "mule," occurred when the mint worker mistakenly paired the wrong dies, resulting in a one-of-a-kind coin. Its rarity and historical significance make it a highly sought-after collector's item among coin enthusiasts.