Gustav Held, Breslau (Wrocław)
Record in the publication Adressbuch, 1843
[Source: Google Books: Grosses Adressbuch der Kaufleute, Fabrikanten..., 1843, p. 345 (relevant page), cited 2022]
Text: Held, Gustav. Prob., Rum-, Sprit- u. Likörfabrik.