- The origin of the glassworker's and glazier's crafts is related to the operation of glass works in Slovakia.(31) The most well-known Slovak glass workers came from Valaska' Bela', where the glass worker's craft originated in the second half of the 18th century. This was connected with the nearby Ga'pel glass works, which also started to focus on production of blown-glass products in the first half of the 19th century.
People from Mojti'n, Zliechov, C~avoj, Temes~, and Poruba distributed blown-glass products from this factory to the entire former Kingdom of Hungary. Glass traders went to Poland, Russia, countries in the Balkans, and Bohemia.(32)
People from glass-workers' villages in Orava and Liptov were originally employed by the Huty glassworks, and after its destruction they reoriented to the glass worker's profession [they produced glass themselves? they became traders in glass?].
From the latter half of the 18th century until the beginning of the 20th century, glass workers from Vel'ke' Borove' and Male' Borove' focused mainly on areas in Russia and Poland. They had their own production centers in Krakow and Warsaw, which employed about 100 men and boys who were being trained.
After 1918, the work of glass workers was limited to Slovakia, Moravia, and Bohemia [as opposed to the rest of the former Kingdom of Hungary?]. Also, the glazier's profession in the above-mentioned villages was based on a traditional system of organization. As early as the 19th century, glaziers used to travel in groups-"families." Each group consisted of 10-15 adult men and 2-3 boys, all of whom were organized by a gazda (master). In its work territory, each group had a fixed stand from where the members would go out looking for work.(33)
All opinions my own
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> The origin of the glassworker's and glazier's crafts is related to >the operation of glass works in Slovakia.(31) The most well-known >Slovak glass workers came from Valaska' Bela', where the glass >worker's craft originated in the second half of the 18th century."A fellow named Kaspar out of Jazowsko (Area of Alt-Sandec) delivered glass. but in the year 1613 he relocated to Szulin (Sulin by Stara Lubovna) in the Zips (Spis) and from there delivered glass in great amounts to Sandec. He was called Hutnik (From the foundry)."
Just wish to say the book provides a fine overview, but any assumption that glass works were not common before min 1800's would be in error. Research specific details in your area of interest!