How to Identify the Portuguese 1000 Reis

What This Coin Is

The Portuguese 1000 Reis is a silver coin issued by the Kingdom of Portugal, most commonly seen from the reigns of Pedro V, Luis I, and Carlos I in the second half of the 19th century. "Reis" was the old Portuguese monetary unit before the 1911 decimal reform introduced the escudo, and the 1000 Reis denomination represented the largest common silver coin of the pre-reform monarchy.

Obverse Design & Inscriptions

The obverse bears the profile portrait of the reigning king, generally bare-headed, encircled by his name and title in Latin form, such as "CAROLUS I D.G. PORTUGALIAE ET ALGARBIORUM REX." The date usually appears at the base of the portrait or in the legend.

Reverse Design & Inscriptions

The reverse displays the crowned Portuguese national shield with its distinctive quinas (small shields) and castle border, surrounded by a wreath, with "1000 REIS" spelled out or shown in numerals. Some earlier types show the arms within an ornate cartouche rather than a wreath.

Size, Weight, Metal, and Edge

These coins are substantial silver crowns, roughly 37 mm in diameter and weighing about 25 grams, in .916 fine silver for most 19th-century issues. The edge is typically reeded, though some series use a lettered edge; always compare edge style against the specific date and ruler.

Mint Marks and Where to Find Them

Most Portuguese 1000 Reis coins were struck at the Lisbon mint and carry no separate mint letter, but a small privy mark or assayer's symbol can appear near the date. Colonial Portuguese mints occasionally struck related denominations with distinct local marks, so confirm the legend reads "Portugaliae" for the mainland type.

Telling It Apart From Similar Coins

Spanish and other Iberian crowns of similar size can look superficially alike; the Portuguese shield with its unique quinas pattern and the "Reis" denomination are the clearest distinguishing features. Compare the specific king's name and portrait style to pin down the exact reign and approximate date range.

Judging Condition at a Glance

Examine the king's hair and the fine lines of the crown atop the shield, since these are the first points to wear smooth. A coin with strong, unbroken luster in the open fields and crisp lettering around the rim represents a higher grade than one with a flat, worn portrait, and collectors also check the small castle details on the shield border for sharpness.

Authenticity Red Flags

Be wary of coins with blurred or uneven lettering, incorrect weight, or a grainy surface suggesting a cast copy rather than a struck coin. Also check that the portrait style and legend wording are consistent with the stated king and date, since mismatches can indicate an altered or fantasy piece.