September 24th, 2011 WorkshopNovember 16, 2011MInna Koistinen instructs student in glass shapingBy Minna Koistinen Previous Student cutting the jack line Next Heating up glass in the glory hole Related Posts A glass paperweight on the pontil rod November 16, 2011 Coloured glass frits are used to add colour to clear molten glass November 16, 2011 Minna and Andrea assist a student to make a glass ornament November 17, 2011 Student making glass paperweight November 16, 2011