Letter 164Արխիվացված 2017-01-09 Wayback Machine to Theo, 21 December 1881, giving more detail of visit, few days, last visit on a Sunday (presumably Sunday 27 November 1881). To be revised?!
Letter 164Արխիվացված 2017-01-09 Wayback Machine, c. December 21, 1881. No name is mentioned, but this may be the first reference to Sien.
Letter 136, dated 24 September 1880 from Cuesmes, describes this trip as occurring in winter; see also Martin Gayford, The Yellow House: Van Gogh, Gauguin, and Nine Turbulent Weeks in Arles, Fig Tree, Penguin, 2006. 0-670-91497-5. See page 177. - March 1880 is also the date proposed by Jan Hulsker, Van Gogh in close-up, Amsterdam 1993 90-290-4914-6
Letter 149, including a post-script of his mother. Dating of Van Gogh's trip revised by Roland Dorn, Van Goghs Lehrzeit bei Mauve, in: Dorn, Schröder & Sillevis (1996), p. 59 and p. 63 note 1
Letter 162 to Theo, 1–3 December 1881, saying he has already been to Amsterdam
Letter 164Արխիվացված 2017-01-09 Wayback Machine to Theo, 21 December 1881, giving more detail of visit, few days, last visit on a Sunday (presumably Sunday 27 November 1881). To be revised?!
