The word Bühl is derived from Old German "puhil" and Middle German "buhel", meaning "hill". The three yellow hills on blue ground seen on the coat of arms (already displayed in the court seal of Bühl in 1324) confirm this interpretation. To distinguish Bühl from other towns named Bühl, not only in Germany, but other German-speaking countries like Switzerland and Austria, the town used the denominator Bühl (Baden) or Bühl/Baden, clearly identifying Bühl in the Margravate of Baden (Baden) and later in the Grand Duchy and the State of Baden. With the unification of Baden, Hohenzollern and Württemberg in 1952 forming the state of Baden-Württemberg and later the introduction of postal codes there was no need anymore for the denominator Baden. However, it is still used frequently.
Lauchert, Friedrich (1913). "Alban Isidor Stolz" . Catholic Encyclopedia. Vol. 14. https://en.wikisource.org/wiki/Catholic_Encyclopedia_(1913)/Alban_Isidor_Stolz ↩
Hudson, Edward (10 September 1987). "Herbert Bloch, a Top Expert In World of Stamp Collecting". The New York Times. ISSN 0362-4331. Retrieved 2 February 2023. https://www.nytimes.com/1987/09/10/obituaries/herbert-bloch-a-top-expert-in-world-of-stamp-collecting.html ↩