Obvious Fakes of PR2 being sold on eBay.

The ebay seller has identified the stamp as PR8, the 1880 American Bank Note company print on soft porous paper with a white border.

I can't comment on whether it is real or fake; however, three 5c reprints of this design were issued subsequent to the PR2 with each having a white border.

Here are images of Scott PR4, PR5 & PR8, respectively, that were certified as genuine by the Philatelic Foundation.

Remove foot from mouth and learn something in the process. Thank you gentlemen.