...and this one was surrendered on 25 August 1648 at Uttoxeter. It belonged to one of the troops of the Duke of Hamilton's life guard of horse. The slogan means 'give unto Caesar', referring to Matthew 22:21.
Here's a couple more Covenanter cavalry standards (cornets) that might be of use to someone.
First up - A cornet of Lord Mauchline's regiment, captured at Dunbar in 1650: