Argon posters & prints

William Ramsay, Scottish chemist, 1908 Spy

John William Strutt, 3rd Baron Rayleigh, British scientist, 1899 Unknown

Plate 2: The Argonaut Amphion led by Mercury, with a…, 1664 Unknown

Plate 9: Argonauts Hicleus and Naucleus led in the float of Neptun Unknown