POLAND - "Death of Prince Joseph PONIATOWSKI crossing the Elster at the Battle of Leipzig on October 19, 1813". Engraved in aquatint by DEBUCOURT (1755-1832) after Horace VERNET (1789-1963). Proof with the letter, on wove paper. Margins. 65 x 84 cm. Condition A/B (restored tear in the sky on the right, marginal foxing and on verso).