Illustrated Civil War envelopes with patriotic symbols, slogans and cartoons, mostly Northern, including a few Southern ones.
An amphibian or a lizard. The animal portrayed seems to have have characteristics of both.
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United States -- History -- Civil War, 1861-1865; United States -- Politics and government -- 1861-1865; Covers (Philately) -- United States -- History -- Civil War, 1861-1865; Envelopes (Stationary); Cachets (Philately); Patriotism -- United States; United States Civil War; US Civil War; Patriotic envelopes; Amphibian; Lizard;