Today’s lesson in understanding German is on the word “Schmuck”. Signage everywhere in Germany/Austria have some version of this word such as here:
No this isn’t a passageway for jerks. Schmuck in German means “jewelry” or “adornment” so some variation of it is used on signage by Jewelers. This is not to be confused with the same word derived from Yiddish that means a “foolish or contemptible person” or literally the word for a male appendage.