Silver Coinage of Charles III
The silver coinage falls into two types. The Pillar type, coined until April 1772, is of the same type as that of the previous reigns. These are detailed below.
The Bust or Portrait type shows the laureated head of Charles III, facing right, draped and cuirassed in Roman style; around the margin . CAROLUS . I l l . DEI GRATIA.; the date appears in exergue. The reverse bears the crowned arms of Spain but in a less ornate shield, between two pillars, each entwined with a ribbon bearing the motto PLUS ULTRA; on the margin, HISPAN . ET IND . R E X .; the mint mark; value, and assayers' initials. These pieces are in the usual five denominations. The head type pieces were a trifle larger in diameter, but the eight reales coins were reduced to the previous size after the second year. The edge, instead of the elaborate floral pattern, now has a design of squares and annulets.
The silver Bust or Portrait styles coins are detailed here.
Half real
A classification of the half real coins of Charles III can be found here.
One real
KM-77 1r 1761/0 Mo M (Stack’s Bowers auction, 27 June 2019, lot 71748)
| Date | Asssayer | Comment |
| 1760 | M | |
| 1761/0 | M | |
| 1762 | M | |
| 1763/2 | M | |
| 1763 | M | |
| 1764 | M | |
| 1765 | M | |
| 1766 | M | |
| 1767 | M | |
| 1768 | M | |
| 1769 | M | |
| 1770 | M | |
| 1770 | F | |
| 1771 | F |
KM-77 1r 1763 Mo M (Stack’s Bowers ANA auction, 16 August 2018, lot 21342)
Large 3 in date, "o" above "M" of mintmark repunched.
Two reales
KM-87 2r 1761 Mo M (Stack’s Bowers auction, 16 January 2012, lot 22048)
| Date | Asssayer | Comment |
| 1760 | M | |
| 1761 | M | |
| 1762 | M | |
| 1763/2 | M | |
| 1763 | M | |
| 1764 | M | |
| 1765 | M | |
| 1766 | M | |
| 1767 | M | |
| 1768/6 | M | |
| 1768 | M | |
| 1769 | M | |
| 1770 | M | |
| 1770 | F | |
| 1771 | F |
M-87 2r 1763/2 Mo M (Stack’s Bowers auction, 24 February 2026, lot 76466)
KM-87 2r 1768/6 Mo M (Stack’s Bowers auction, 24 February 2026, lot 76471)
Four reales
KM-96 4r 1761 Mo MM (Stack’s Bowers auction, 24 February 2026, lot 76456)
Variety with cross between "I" and "S".
| Date | Asssayer | Comment |
| 1760 | MM | cross between HI and SP |
| 1761 | MM | |
| 1761 | MM | cross between HI and SP |
| 1762 | MM | |
| 1762 | MF | |
| 1763/1 | MM | |
| 1763/2 | MF | |
| 1763 | MM | |
| 1763 | MF | |
| 1764 | MM | |
| 1764 | MF | |
| 1765 | MF | |
| 1766 | MF | |
| 1767 | MF | |
| 1768 | MF | |
| 1769 | MF | |
| 1770 | MF | |
| 1771 | MF | |
| 1771 | FM |
KM-96 4r 1763/1 Mo MM (Stack’s Bowers auction, 14 November 2022, lot 71706)
A distinct vertical line is visible beneath the final digit of the date, confirming this is the scarce overdate variety.
Eight reales
| Date | Asssayer | Comment |
| 1760 | MM | tip of cross between HI and SP |
| 1761 | MM | tip of cross between HI and SP |
| 1761 | MM | tip of cross between HI and SP |
| 1762/1 | MM | tip of cross between H and I |
| 2762 | MF | tip of cross between H and I |
| 1762 | MF | |
| 1763/2 | MM | |
| 1763 | MM | |
| 1763/1 | MF | |
| 1763/2 | MF | |
| 1763 | MF | |
| 1764 | MF | |
| 1764/3 | MF | |
| 1765 | MF | |
| 1766 | MF | |
| 1766/5 | MF | |
| 1767/6 | MF | |
| 1767 | MF | |
| 1768 | MF | |
| 1769 | MF | |
| 1770/60 | MF | |
| 1770 | MF | |
| 1771 | MF | |
| 1771 | FM |
KM-105 8r 1761 Mo MM (Stack’s Bowers auction, 22 April 2023, lot 44037)
Variety with cross between "H" and "I".
KM-105 8r 1761 Mo MM (Stack’s Bowers auction, 15 August 2016, lot 22698)
Variety with cross between "I" and "S".
KM-105 8r 1761/0 Mo MM (Stack’s Bowers auction, 17 August 2024, lot 44159)
Variety with cross between "I" and "S".
KM-105 8r 1763/2 Mo MF (Stack’s Bowers auction, 26 August 2025, lot 41319)
KM-105 8r 1766/5 Mo MF (Stack’s Bowers auction, 17 August 2024, lot 44166)
KM-105 8r 1768/6 Mo MF (Stack’s Bowers auction, 17 August 2024, lot 44167)