Turboco - ODDS - Trautman
Turboco is a highly saturated cobalt blue. Use thick as a substitute for black, or thinner as a dark blue. Work Turboco in an oxidizing atmosphere; reducing may cause gray streaks.
Odd quality glass is first quality glass that is out of round, thinner/thicker than normal, has a taper, varies in diameter and/or is not full length. Odd quality glass can provide a great value to the right person.