Logo Title
obverse
reverse
monge CC0
Context
Years: 1786–1799
Issuer: Portugal Issuer flag
Ruler: Maria I
Currency:
(1517—1835)
Demonetized: Yes
Total mintage: 5,152,807
Material
Diameter: 36 mm
Weight: 14.5 g
Silver weight: 13.30 g
Thickness: 1.5 mm
Shape: Round
Composition: 91.7% Silver
Magnetic: No
Technique: Milled
Alignment: Coin alignment
Obverse
OBVERSE ↑
flip
Reverse
REVERSE ↓
References
KM: #Click to copy to clipboard288
Numista: #25672
Value
Bullion value: $38.03

Obverse

Description:
Portuguese coat of arms, value, and year flanked by Latin text.
Inscription:
MARIA.I.D.G.PORT.ET.ALG.REGINA

*400* / *1793*
Script: Latin

Reverse

Description:
Cross of the Order of Christ with corner rosettes and peripheral Latin inscriptions.
Inscription:
IN HOC SIGNO VINCES
Script: Latin

Edge

String shape

Mintings

YearMint MarkMintageQualityCollection
17862,039
17881,620
17926,750
1793499,617
1794336,901
1795715,544
1796476,346
17971,013,140
17981,376,187
1799724,663

Historical background

In 1786, Portugal operated under a complex and strained monetary system, largely a legacy of the reign of King José I and his powerful minister, the Marquis of Pombal. The primary circulating coin was the real (plural: réis), with values often counted in the thousands (milréis). However, the currency landscape was fragmented and problematic. A severe shortage of gold and silver coinage, stemming from declining Brazilian gold mines and trade deficits, was exacerbated by a proliferation of worn, clipped, and counterfeit coins. Furthermore, different values of coins, including Spanish pieces, circulated simultaneously at fluctuating rates, creating confusion and hindering commerce.

The state’s response, particularly under Pombal’s earlier direction, had been to repeatedly debase the coinage—reducing the precious metal content while maintaining face value—to finance state expenditures, especially following the costly 1755 Lisbon earthquake. This practice eroded public trust in the currency and contributed to inflationary pressures. By 1786, during the reign of Queen Maria I, the financial system was burdened by these inherited issues. The economy was also adjusting to the 1786 commercial treaty with Great Britain, which, while stimulating trade, likely exacerbated the outflow of specie (gold and silver), worsening the coin shortage.

Consequently, the monetary situation in 1786 was one of fragility and transition. The crown faced the pressing challenge of stabilizing the currency, restoring its intrinsic value, and simplifying the chaotic circulation to support economic activity. This environment set the stage for future attempts at reform, most notably the major currency overhaul that would come in the following decade with the introduction of the real of gold and the real of silver as standards in 1797, aiming to bring order to Portugal’s troubled finances.

Series: 1786 Portugal circulation coins

½ Tostão obverse
½ Tostão reverse
½ Tostão
1786-1799
3 Vintens obverse
3 Vintens reverse
3 Vintens
1786-1799
Tostão obverse
Tostão reverse
Tostão
1786-1799
6 Vinténs obverse
6 Vinténs reverse
6 Vinténs
1786-1799
Cruzado Novo obverse
Cruzado Novo reverse
Cruzado Novo
1786-1799
12 Vinténs obverse
12 Vinténs reverse
12 Vinténs
1786-1799
Rare