Warwickshire 57, Birmingham (Dalton & Hamer, page 267)

Denomination: halfpenny, scarcity: Extra rare (RRR)
57.  O: A shield bearing four hedgehogs, crest a hedgehog. INDUSTRY HAS IT'S SURE
        REWARD. (Same for Nos. 57-61, as rev. of No. 50).
     R: Blank.
     E: CURRENT EVERY WHERE.

No. 57, RRR.

Keywords

industry has it's sure reward,blank_side