Letter, from Sir John Herschel to Richard Sheepshanks Autograph letter signed by sender. John Frederick William Herschel concerned not so much that a few copies of the print of John Frederick William Herschel's portrait may have been sold, but that the plate itself may have been stolen and sold. Seems relieved to know that the plate was left with the printer, not the engraver. Asks Richard Sheepshanks to make an inquiry with the printer. 2 March 1840