Morgan's second obverse design of this type with pellets between the words in "E Pluribus Unum" combined with his reverse with pellets before and after "Five Dollars".
It is unclear if this is a second obverse die or the original die used on J1568-J1569/P1758-P1760 with the pellets added later.
These were struck on thinner and slightly wider 25.5mm vs 21.5mm planchets than the regular issue.
About a half dozen are known in copper as illustrated, several of which have been gilted.
A single example struck in gold J1572/P1761 is known and is ex Newcomer, Col Green, Farouk lot 316 and has not been seen since.
This obverse die was also used on J1573A/P1763 and J1570-J1571/P1764-P1765 and the reverse was also used on J1568/P1758.
A copper obverse die trial JA1878-4/P3461 and a copper reverse die trial, JA1878-3/P3458 are also known.
Photo courtesy of Stacks-Bowers.