Letter 218 was written after
217, because Vincent writes ‘So now you have a figure of mine and a landscape’
(l. 4); in
217 Theo had only
Sorrow (the ‘figure’). The letter was written before
letter 219, in which Van Gogh writes about the previously sent ‘drawings’ (plural,
l. 5). The dating is based on Van Gogh’s remark that it is ‘very bleak and windy’; in the coastal region temperatures dropped several degrees on 18 April, and on 18 and 19 April there were strong winds (
KNMI).