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 J1114/P1250 with about a half dozen including the illustrated piece believed to be the former Harry W. Bass Jr. Research Foundation example.
Copper J1115/P1251 with just over a half dozen known.
Alminum J1116/P1252 with the following 2 confirmed
1) Krouner-Coronet Coin FPL, Champa-B/R 5/72, Sieck-81 ANA, B/M 9/82, Heritage 1/04, southern collection as PCGS66, Simpson collection - NGC66/PCGS66
2) Eric Newman-EPNNES, Heritage 4/13, Heritage 9/13 - NGC67