501825 3M Speedglas 9100XX Shield (73 mm x 107 mm)
3M Speedglas 100 Series Welding Helmet - Advanced Welding Supplies
3M Speedglas 9100X that's been with me since college all the way through my redseal/journeyman career of 7 years. So far it's out lasted every other welding helmet that's come thru my