Longacre's flying eagle design. This was apparently copied from Christian Gobrecht's dollar and half dollar patterns in the late 1830s.
This obverse was combined with 3 different reverse designs.
On this one, there are two leaves beneath the "E" in "States". This reverse was also used on J160-J162/P187-P188 and J172-J174A/P198-P201.
To see all 3 reverses side by side, click here.
These were struck in copper J163 and Bronze J164.
Originals are said to from 90 to 100 grains with restrikes weighing about 113 grains. This pattern is relatively common.
Photo courtesy of Bowers and Merena.