GE "Computer Light" T-shape lamps

Been after some of these for some time, but finally got hold of some split off an Ebay lot for me. These have a curious external acid-etched coating on them, apparently for use in desk lamps near computer monitors to reduce glare on the screen. They didn't catch on as they were more expensive than the usual Philips "Softone" or GE "Elegance" T-shape lamps which I imagine people used instead.