Gold coinage of Charles IV
One escudo
The first type displayed the bust of Charles III, but in the name of Charles IV.
KM-119 1E 1790 Mo FM (Stack’s Bowers auction, 16 January 2021, lot 22230)
| Date | Asssayer | Comment |
| 1789 | FM | |
| 1790 | FM |
The next typ had upright assayers' initials and mint mark.
KM-120 1E 1799 Mo FM (Stack’s Bowers auction, 16 January 2021, lot 22237)
| Date | Asssayer | Comment |
| 1792 | FM | |
| 1793 | FM | |
| 1794 | FM | |
| 1795 | FM | |
| 1796 | FM | |
| 1797 | FM | |
| 1798 | FM | |
| 1799 | FM | |
| 1800 | FM | |
| 1801 | FM | |
| 1801 | FT | |
| 1802 | FT | |
| 1803 | FT | |
| 1804 | TH | |
| 1805 | TH | |
| 1806 | TH | |
| 1807 | TH | |
| 1808 | FM |
Two escudos
A first type, used for two years, had the bust of Charles III, but in the name of Charles IV.
KM-131 2E 1790 Mo FM (Stack’s Bowers auction, 16 January 2021, lot 22229)
| Date | Asssayer | Comment |
| 1789 | FM | |
| 1790 | FM |
KM-132 2E 1799 Mo FM (Ponterio Baltimore auction, November 2015, lot 39371)
Upright Assayers Letters and Mint Mark
| Date | Asssayer | Comment |
| 1791 | FM | Mo over |
| 1792 | FM | |
| 1793 | FM | |
| 1793/2 | FM | |
| 1794 | FM | |
| 1795 | FM | |
| 1796 | FM | |
| 1797 | FM | |
| 1798 | FM | |
| 1799 | FM | |
| 1800 | FM | |
| 1801 | FT | |
| 1802 | FT | |
| 1803 | FT | |
| 1804 | TH | |
| 1804 | TH/FT | illustrated below |
| 1805 | TH | |
| 1806 | TH | |
| 1807 | TH | |
| 1808 | TH |
KM-132 2E 1804 Mo TH/FT (Stack’s Bowers auction, 16 January 2021, lot 22236)
Counterfeits
counterfeit KM-132 2E 1802 Mo FT (Stack’s Bowers auction, 31 October 2023, lot 70160)
A somewhat crude contemporary forgery.
counterfeit KM-132 2E 1806/5 Mo MF (Stack’s Bowers auction, 31 October 2023, lot 70161)
An unusual counterfeit apparently produced in cast and gilded platinum; typically, these gilt platinum counterfeits are found imitating issues of mainland Spain rather than of the Spanish colonies.
Four escudos
The first issue was a two-year transitional type with the bust of Charles III, but in the name of Charles IV (ordinal IV).
KM-143.1 4E 1789 Mo FM (Stack’s Bowers NYINC auction, 15 January 2022, lot 2090)
| Date | Asssayer | Comment |
| 1789 | FM | |
| 1790 | FM |
A scarce short lived one year type struck with the bust of Charles III, but in the name of Charles IV with ordinal as IIII.
KM-143.2 4E 1790 Mo FM (Stack’s Bowers auction, 16 January 2021, lot 22232)
| Date | Asssayer | Comment |
| 1790 | FM |
KM-144 4E 1804 Mo TH (Stack’s Bowers NYINC auction, 15 January 2022, lot 2092)
| Date | Asssayer | Comment |
| 1791 | FM | |
| 1792 | FM | |
| 1793 | FM | |
| 1794 | FM | |
| 1794/3 | FM | illustrated below |
| 1795 | FM | |
| 1796 | FM | |
| 1797 | FM | |
| 1798 | FM | |
| 1798/7 | FM | illustrated below |
| 1799 | FM | |
| 1800 | FM | |
| 1801 | FT | |
| 1802 | FT | |
| 1803 | FT | |
| 1803/2 | FT | illustrated below |
| 1804 | TH | |
| 1804/3 | TH | illustrated below |
| 1805 | TH | |
| 1806 | TH | |
| 1807 | TH | |
| 1808 | TH | |
| 1808/0 | TH | illustrated below |
KM-144 4E 1794/3 Mo FM (Ponterio ANA auction, 13 August 2011, lot 21283)
KM-144 4E 1798/7 Mo FM (Ponterio NYINC auction, 7 January 2011, lot 122)
KM-144 4E 1803/2 Mo FT (Ponterio NYINC auction, 7 January 2011, lot 123)
KM-144 4E 1804/3 Mo TH (Stack’s Bowers auction, 17 August 2024, lot 44417)
KM-144 4E 1808/0 Mo TH (Stack’s Bowers auction, 17 August 2024, lot 44418)
Eight escudos
A scarce and popular short lived two year type struck with the bust of Charles III, but in the name of Charles IV.
KM-157 8E 1789 Mo FM (Stack’s Bowers auction, 16 January 2021, lot 22227)
| Date | Asssayer | Comment |
| 1789 | FM | |
| 1790 | FM |
A rare one year type. Transitional bust of Charles III in the name of Charles IV with the king's ordinal as "IIII".
KM-158 8E 1790 Mo FM (Stack’s Bowers NYINC auction, 13 January 2018, lot 21168)
| Date | Asssayer | Comment |
| 1790 | FM |
KM-159 8E 1792 Mo FM (Stack’s Bowers ANA auction, August 2014, lot 1246)
| Date | Asssayer | Comment |
| 1791 | FM | |
| 1792 | FM | |
| 1793 | FM | |
| 1794 | FM | |
| 1795 | FM | |
| 1796 | FM | |
| 1795/5 | FM | illustrated below |
| 1797 | FM | |
| 1797 | FM | |
| 1798 | FM | a rare and important legend die cutting error, with "EFLIX" instead of "FELIX" in the reverse legend (illustrated below) |
| 1799 | FM | |
| 1800 | FM | |
| 1801 | FM | |
| 1801 | FT | |
| 1801/0 | FT | illustrated below |
| 1802 | FT | |
| 1803 | FT | |
| 1804 | TH | |
| 1804/3 | TH | illustrated below |
| 1805 | TH | |
| 1805/4 | TH | illustrated below |
| 1806 | TH | |
| 1807 | TH | Mo over Mo |
| 1808 | TH |
KM-159 8E 1796/5 Mo FM (Stack’s Bowers auction, Summer 2022, lot 31101)
Displaying a very subtle overdate.
KM-159 8E 1797 Mo FM EFLIX (Stack’s Bowers NYINC auction, 8 January 2016, lot 41237)
KM-159 8E 1801/0 Mo FT (Stack’s Bowers ANA auction, 7 August 2012, lot 40263)
KM-159 8E 1804/3 Mo TH (Stack’s Bowers NYINC auction, 19 January 2022, lot 7714)
KM-159 8E 1805/4 Mo TH (Stack’s Bowers auction, 16 January 2021, lot 21067)
"The overdate, while subtle, is undeniable with slight traces of the base of the four, as well as its far left point, confirmed upon close inspection. Because of this, likely missed by the La Onza authors, making their usage of this exact coin in their plating of the regular 1805 date a somewhat whimsical footnote."