Photos from AACA Father's Day show in Buick - General Posted June 20, 2006 Matt,The lines on the Stutz windows were probably done to mimic the original safety glass. I think a very early version of safety glass had wires embedded in the glass to keep it from shattering upon impact and to keep passengers from flying through it. Kind of like the chicken wire in school windows. Most likely not legal to do now so the restorer had to come as close as possible. Not sure where I read this-possibly one of the Purdy books or a history of Stutz.