Production primarily consisted of jewellery and small glassware. These were purchased in the 1860s and 70s by the large Gablonz trading companies: Josef Pfeiffer, Eduard Dressler and Wilhelm Klaar, as well as smaller businesses in the Iser Mountains. Josef supplied blown hollow glass, small bottles and chandelier trimmings to Steinschönau and Haida in the Böhmisch Leipa region, with key customers including the well-known Steinschönau chandelier factory owned by Elias Palme. Steinschönau and Haida were known as the home of chandelier-making. However, the chandelier components came primarily from the Riedel Glassworks in the Iser Mountains. Josef donated a huge chandelier to the Franciscan church in Haindorf in 1853; it had been assembled in Steinschönau by Josef Helzel & Co. but its parts came from the Josef Riedel glassworks. This was true for similar gifts until Josef established his own factory in Polaun, which could assemble chandeliers. Before that the Polaun glass factory mainly supplied its hollow glass jewellery and small glass goods to customers in London, Vienna, Berlin, Constantinople, Paris and Amsterdam.