Stately and medieval, the Altes Rathaus (Old Town Hall) of Regensburg dominates this crisp black-and-white photographic postcard — its Gothic stepped gable, ornate tracery windows, and centuries of weathered stone rendered with sharp tonal clarity by publisher B.R.'s Regensburg series. One of Bavaria's great UNESCO World Heritage landmarks, the Rathaus served as the seat of the Imperial Diet of the Holy Roman Empire from 1663 to 1806; its carved portal and arcaded ground-floor shops appear here largely unchanged from their medieval form. The card is unused and blank on the reverse — a pristine collector's specimen, likely sold at a souvenir kiosk in the 1930s to a visitor who tucked it away unmailed.