English soldier and statesman (1599–1658) who led Parliamentary forces in the English Civil War, waged war against Scotland and Ireland and, following the execution of Charles I in 1653, became Lord Protector of Great Britain, a position he held until his death in 1658. After a yearlong reign by his son, Richard, the British throne was restored (to Charles II) and Cromwell’s body was exhumed and posthumously “executed.” Scarce ink signature, “O. Cromwell,” on a slightly irregular, closely clipped off-white 1.5 x .5 slip affixed to a larger slip. Matted with a color portrait and engraved plaque to an overall size of 12 x 20. Bold, dark, and in fine condition. Cromwell’s signature in any form is elusive and avidly sought after. LOA John Reznikoff/PSA/DNA and R&R COA.