These are struck on eagle diameter planchets as part of an anti-counterfeiting effort. This design also has a die blunder in that the "V" in "Five" is actually an upside down "A".
These, as struck in copper, are known on both thick and thin planchets. Many have been gilted. Red examples are excessively rare. This design was repeated in 1861 as J283/P336.
2 are known in gold of J271/P319. Both were in the Wilkison collection.
Incomplete reverse die JA1860-4/P3248 and hub JA1860-5/P3251 trials, struck in lead, are also confirmed to exist.
Photo courtesy of Superior.