In
letter 689 of Wednesday, 26 September, Vincent told Theo that he was expecting a letter from Bernard at any moment, following up on the sketches that the latter had sent
(ll. 140-142). He had not yet had the letter that he was expecting when he wrote this one. One can assume that he would have replied not long after receiving Bernard’s sketches, and he had told Theo on Tuesday, 25 September that he had got them (in
letter 687). Because, moreover, he now writes: ‘the weather’s really beautiful’ (
ll. 6-7 (from Wednesday, 26 September until 1 October it was dry, with scattered clouds and a temperature of 25ºC), and because on Wednesday, 3 October he told Theo that he had now received a letter from Bernard, we have dated this one between Thursday, 27 September and Monday, 1 October 1888. Pickvance placed it between
letters 686 and
687, but in those Van Gogh reported that the weather was autumnal. Cf. exhib. cat. New York 1984, p. 260.