An eye in a star, the spokes of which divide the spectrum of colours; putti hold a prism, a telescope, a rod refracted in water, and a camera obscura; representing optics. Engraving by J. Chapman, 1820, after A.D. Macquin.
M'Quin, A. D. (Ange Denis), 1756-1823. | Date: January 1820 | Reference: 25681i