50.2 x 30.8 (fountain) Bronze and brass
Compression fountain and pump
50.2 x 30.8 (fountain) Bronze and brass
40.5 (pump) Bronze e latão
Nollet, Jean-Antoine, Leçons de Physique Expérimentale, Paris, 1764, Vol. III, Leçon X, Pl. 3, Fig. 16 and 17.