The State Tinkers, James Gillray, 1780, Library of Congress.
At first I thought that the Library of Congress had gotten the date wrong, but a close look at the publication date at the bottom shows that the "4" was written on later, over the date.
Personalities representing the heads of Government are busily chipping away at "The National Kettle." King George foolishly proclaims the "Tinkers" as saviors, when in fact they make two holes for every one they claim to fix.
Brandishing a sledgehammer and dressed in the clothing of a common sailor is John Montagu, Fourth Earl of Sandwich, and First Lord of the Admiralty for the North Administration.