Photographic postcard of the Hauptbahnhof in Wiesbaden, Germany — the grand 1906 railway station with its tall clock tower, ornate gables, and arched glass canopy, electric trams and pedestrians crossing the plaza out front. Wiesbaden's station was built to match the town's status as one of imperial Germany's most fashionable spa resorts, drawing European royalty and the wealthy to its mineral baths. Mailed from Mainz in April 1921, the card arrived in Cherbourg, France, under-franked — a French "Taxe" postage-due stamp was affixed to collect the deficiency from the recipient, a small everyday friction of the international mail system in the unsettled years just after the First World War.

• Caption: "Wiesbaden, Hauptbahnhof"
• Publisher: M. Jacobs, Kunstverlag, Frankfurt a.M.
• Postmark: Mainz, April 6, 1921
• Status: Posted (postage due)