A woman and a man from Prussian Silesia, two color prints from the late 18th century

Woman and man from Prussian Silesia, color engravings from the late 18th century. Graphics on separate cards, approx. 12.5 x 18.5cm, glued with central part to a card 31.5 x 24.5cm. On both cards pagination information [251], volume 2 consecutive numbers 66 and 67. Under both works description in French: "Prussienne de Silesie" and "Prussien de Silesie", minor soiling, otherwise good condition.