This desk was designed for the Buchungsbüro (Deposits Office).
cf. Fünfundzwanzig Jahre Postsparkasse, Vienna, 1908.
P. Asenbaum, Otto Wagner: Möbel und Innenräume, 1984, p. 211, fig. 269 for a period photograph of the desk model and p. 212, figs. 271-271 for illustrations of the front and reverse of desk.