Whole Hog or None, Excellent Patriotic Civil War CoverThere were a lot of interesting patriotic covers (envelopes) produced during the civil war era, but this my be my favorite I've seen and quite a concise and effective way of communicating the Union message, I'd say. Note the unusual configuration of the stars on the flag here, too. 5 1 2" x 3 1 16" and in excellent, unused condition.