The Longacre design with stars combined with the regular reverse. This was apparently implemented by William Barber as Longacre died in 1869.
These were sold as part of complete sets from the half dime to the silver dollar. To view the set, click here.
Examples were struck as follows:
Silver J1068/P1204 with about a half dozen known.
Copper J1069/P1205 with about a half dozen known.
Aluminum J1070/P1206 with the following 2 confirmed:
1) Heritage 7/03, southern collection, Simpson-Heritage 11/20, Saul Teichman - PCGS65
2) Heritage 6/18 as PCGS65, LegendAuctions 5/19 - PCGS66