Middlesex 237Bis, Political and Social Series (Dalton & Hamer, page 542)

Denomination: penny
237Bis.  O: Chained Negro in supplication. AM I NOT A MAN AND A BROTHER.
            The legend in smaller letters. The head closer to legend. 
            Similar. Ground different.
         R: WHATSOEVER | YE WOULD THAT | MEN SHOULD DO | TO YOU, DO YE |
            EVEN SO TO | THEM. The period is below the level of M.

In Addenda, page 542.

Keywords

am i not a man and a brother,whatsoever ye would that men should do to you do ye even so to them