September 26th, 2011 WorkshopNovember 17, 2011Minna Koistinen demonstrates the colour gathering processBy Minna Koistinen Previous Minna Koistinen shaping and blowing molten glass Next Shaping and blowing glass simultaneously Related Posts Cutting a jack line into hot glass November 17, 2011 Minna detaching finished piece from the pontil rod November 17, 2011 Minna Koistinen and Andrea Doggett doing a demo of a paperweight November 17, 2011 Andrea Doggett guides participant in applying colour November 17, 2011