Logo Title
obverse
reverse
Obverse A.Monge da Silva CC0
Context
Years: 1818–1825
Issuer: Portugal Issuer flag
Ruler: John VI
Currency:
(1517—1835)
Demonetized: Yes
Total mintage: 8,813,572
Material
Diameter: 36 mm
Weight: 14.68 g
Silver weight: 13.46 g
Shape: Round
Composition: 91.67% Silver
Magnetic: No
Technique: Milled
Alignment: Coin alignment
Obverse
OBVERSE ↑
flip
Reverse
REVERSE ↓
References
KM: #Click to copy to clipboard358
Numista: #27731
Value
Bullion value: $37.30

Obverse

Description:
Portuguese coat of arms on a crowned armillary sphere, flanked by value and year, with peripheral Latin legends.
Inscription:
JOANNES VI D G PORTUG BRASIL ET ALGARB REX

*400* / *1822*
Translation:
John VI, by the Grace of God, King of Portugal, Brazil, and the Algarves

*400* / *1822*
Script: Latin
Languages: Latin, Portuguese

Reverse

Description:
Christ Cross with corner rosettes. Latin inscriptions on the rim.
Inscription:
IN HOC SIGNO VINCES
Translation:
In this sign you will conquer.
Script: Latin
Language: Latin

Edge

Rope shaped

Mintings

YearMint MarkMintageQualityCollection
18182,337,338
18191,432,360
18201,844,793
18211,936,864
1822566,659
1823667,087
182528,471

Historical background

In 1818, Portugal’s currency situation was complex and unstable, deeply entangled with the political and economic turmoil of the preceding decades. The country was still recovering from the Peninsular War (1807-1814) and the French occupation, which had devastated the economy and disrupted trade. Furthermore, the royal court’s exile in Brazil from 1807 to 1821 had shifted the empire's financial center to Rio de Janeiro, leading to a drain of metallic currency (gold and silver) from Portugal to its colony. The circulating medium within Portugal itself was a chaotic mix of older Portuguese coins, foreign currency (particularly British), and increasingly depreciated paper money.

The core of the problem lay with the real (plural: réis), the long-standing unit of account, and the severe shortage of physical specie. To finance the war and government operations, the Regency had authorized the issuance of paper notes by the Banco de Lisboa (founded 1821, but plans were underway). However, these notes were not fully convertible and circulated at a significant discount to their face value in metal. This created a dual system where transactions in gold or silver commanded a premium, while most commerce relied on depreciating paper, causing price inflation and public distrust.

This monetary instability reflected a broader fiscal crisis. The state was burdened with enormous debt from the war and faced declining revenues from traditional sources. The situation would not improve until after the liberal revolution of 1820 and the subsequent return of King João VI in 1821, which initiated attempts at financial reform. However, in 1818, Portugal remained in a period of monetary confusion, with its currency system weakened by a lack of specie, reliance on unstable paper, and the overarching political uncertainty of a kingdom divided between Lisbon and Rio de Janeiro.

Series: 1818 Portugal circulation coins

3 Réis obverse
3 Réis reverse
3 Réis
1818
5 Réis obverse
5 Réis reverse
5 Réis
1818-1824
10 Réis obverse
10 Réis reverse
10 Réis
1818-1824
12 Vinténs obverse
12 Vinténs reverse
12 Vinténs
1818-1822
Cruzado obverse
Cruzado reverse
Cruzado
1818-1825
Peça obverse
Peça reverse
Peça
1818-1824
Rare