What is "glassblowers"

Usage examples of "glassblowers".

Tailors, bakers, linen-makers, glassblowers, sailors, papyrus workers—almost all the Mediterranean world's paper was made in Alexandria—shopkeepers, merchants, domestic servants, fishermen, grain handlers: the list was well nigh endless.

I would teach English as a second language or help local glassblowers get their wares into American department stores, and so on.