Tim, thanks for that link, it was a trip down memory lane. I started in a glass shop in 1975 doing auto glass and glazing, PPG was our primary supplier for auto and flat glass.
Jim, PPG auto glass became PGW (Pittsburgh Glass Works) several years ago. I think I have heard that someone had stencils available to sand blast or etch the old style "bugs" (logo) on a new piece of glass. I did a quick google search and drew a blank, but that doesn't mean they aren't available.
John