Additional:
Below the signature are the words ‘WelEd. Heer G. de Zwart. / Architekt / Voorburg.’ These lines must have been written after Van Gogh had folded the letter over twice. We regard them as an address, not as part of the letter.
The envelope belonging with this letter has been preserved. It is postmarked ‘’S GRAVENHAGE 4-5 N, 13 FEB 83’ on the front, and ‘VOORBURG 13 FEB 83 6-7 N’ on the back. On the 5 cent stamp is the numbering stamp 44 (for The Hague). It is addressed to ‘WelEd. Heer G. de Zwart/ Architect./ Kleine Laan./ Voorburg.’
Ben Moritz, ‘Two unknown letters’, Bulletin Van Gogh 4-2 (1973), p. 27.