merchant Seaman sign address British political cartoon c.1780 engraved printOriginal copper engraved 18th century political satire print. (Satirical cartoon print.) "The Principal Merchants & Traders Assembled at the merchant Seaman's Office to sign ye Address". An early use of word balloons within a cartoon image! Print mounted long ago to a large backing sheet once within a scrapbook. Pictures capture condition and print well. Engraved print measures c. 4 5 16H x 6 1 4 W. Backing sheet is large with margins that allow print