I had a pair of these I bought brand new in the box in 1995. I know they made them way before this since I had a pair on my home audio system when I was a kid in the early 90's.
I lost my last pair when I did a permanent install with them and I cannot find another set.
The ones I am looking for have a dimpled dome and are not the newer looking Kicker style tweeters. These were almost home audio looking and came with passive inline filters. They measure about 2-2.5" wide weigh about 1/8th to 1/4lb each.