those are actually kinda thin but stronger than todays yardblasters....but they actually have white refractor instead of clear...those are still sold actually...Dave Lay i believe had found those...if this one is a closed bottom...it may have a star burst design in the very bottom!
You know....i Saw one of those Tapered Cone Nema Refractor in a Flea Market...along with one of those Faux Westinghouse BT-25 Lamps.....i also Spotted a 90's AE Blaster....when i asked if they for Sale they Wernt.....thats really irritating.
still a Drag Though.