XJF359014 Portrait of a gentleman believed to be Thomas Harriot, c.1620 (engraving) by Delaram, Francis (c.1590-1627); Private Collection; (add.info.: Thomas Harriot (c.1560-1621) English astronomer, mathematician, ethnographer and translator; the portrait could actually be of John Napier (1550-1617) the Scottish mathematician, physicist, astrologer and astronomer; the image could show the sitter using a Scacchiac Abacus or \'Napier\'s Bones\' invented by Napier; Harriot was the first person to draw the moon through a telescope;); English, out of copyright.