This is the first gold dollar pattern. This design was also restruck in the 1850s and later.
Examples were struck as follows:
Gold (alloyed with 10% copper) J67/P70 with about 3 dozen known. These were originally struck by March 14 per Breen. See Pollock page 33.
They were also restruck along with most of the other off-metal pieces in the late 1850s and early 1860s. One is known overstruck on an 1859 gold dollar. This example, ex Wilkison, 2002 ANA is illustrated below courtesy of Superior.
The overstrike is most noticeable through the center of the reverse. The "1", "Dollar" and "date" from the host coin are clearly visible.
Gold (alloyed with 10% silver) J68/P71. According to Akers, these were struck in medallic die alignment in January 1844. Fewer than half a dozen confirmed. An example in Heritage 5/09 from the Lemus-Queller collection as well as the example in Heritage 8/01 were misslabbed as J67.
Metallurgical testing is recommended for any medal aligned example.
Silver J69/P72 with about a half dozen known. It is unknown exactly when these were struck. Several of these were supposedly gilted at the Mint to show how easily such a small coin could be counterfeited according to Don Taxay. It is more likely that these are all restrikes made with the rest of these off-metal examples.
Copper J70/P73 with fewer than a dozen known. These are believed to be restrikes.
Oroide or Copper-nickel J71/P74. These are restrikes believed struck in the 1850s. Pollock lists 2 examples from the 1979 ANA sale ex Sloss. Metallurgical analysis is recommended to see if in fact they are oroide.
Photo courtesy of Bowers and Merena.