There are some Japanese AC shavettes which are unknown to outer world of Japan. This is one of them. Flow razor.
It has a safety bar just like vintage straight razors like Curley's Ideal Safety razor. A very comfortable razor.
I think you’re missing these 2 and I think there’s a green handled one.
Her is a black one and green oneI had the same blue scaled one, too. I just don't count it as different kind. For me, It's just a variation of BBR-S with different colored scale.
I didnt know a green scaled one exist. Thanks for letting me know.
If you scroll this thread up, I anwered my own question. There are two more Schick Prolines. One is BBR-1 and the other's name is unknown to me. I had a couple of opportunity to purchase both of them but I didnt. because I dont collect them any more.
And there could be more. If you find some info, please let us know.
Her is a black one and green one