A framed and mounted three-quarter-length mezzotint portrait of Edward Boscawen (1711–1761) hero of the battle of Porto Bello during the War of Jenkins' Ear in 1739. His bravery earned him the naval nickname "Old Dreadnaught".

Depicted wearing flag officer’s undress uniform and a wig. Boscawen stands on the rocky shore, and with his back to a stormy sea. A ship is visible in the distance on the left.

This portrait was engraved in mezzotint by James Macardell and published by in London in 1757 by Robert Sayer. It is engraved after an original full-length painting by Sir Joshua Reynolds, which was painted between 1755 and 1757. Reynolds' painting remains in the possession of the Boscawen family under the current Lord Falmouth.

Published by James McArdell (1729-1765) after Sir Joshua Reynolds R.A.