Graf von Westphalen Alte Post, (Hamburg Picture 4), Hamburg, Sachsen, Germany, 2014

This appears to be the "Old Post Office," although it looks much newer due to a 2007 restoration as retail space by Stenham Property. The original building dates to 1845-1847, having been designed by Alexis de Chateauneuf (1799-1853), who also designed the Berliner Bahnhof railway station, which in spite of its name was in Hamburg, serving in two incarnations from 1844 until 1903 (I have been unable to find a demolition date for the second station). However, de Chateauneuf only designed the first station, which was used from 1844 to 1857.