Johann Friedrich Frick (1774-1850), Berlin graphic artist, studied at the academy there, became professor in 1808 and specialized early in the aquatint technique. Rare, large-format, patriotic etching, father with his son in front of a war memorial, inscribed in the umbrella margin ''The sacrifice of battle has a thousandfold reward, it sank for fatherland, freedom and throne'', strong, burr-like impression with the full margin, water streak in the upper and lower r. corner, centerfold, small marginal tear, sheet dimensions 77 x 56 cm.