Hendrick ter Brugghen,  Heraclitus, signed and dated 1628, Rijksmuseum, Amsterdam

Fig. 4 Hendrick ter Brugghen, Heraclitus, signed and dated 1628, oil on canvas, 85.5 x 69.5 cm. Rijksmuseum, Amsterdam, inv. no. A 2783 (artwork in the public domain)