I would say that it's a rebadged Komura 35mm f3.5 lens, which was manufactured by Sankyo Kohki. The same lens was also rebadged as a W. Acall (as already mentioned). I've only seen one other Astra lens, a 135mm f3.5 Tele Astra that I got a while ago. That lens too is identical to a Komura 135/3.5 and Super Acall 135/3.5.
I think that Sankyo Kohki is the manufacturer because there was quite a full line of Komura lenses made in many mounts (as well as large and medium formats), while there were only a few Acalls and Astras. I also have a few Soligor lenses in Leica screw mount that do not resemble Komuras.
Anyway, I have both Komura and Acall samples, and, as David Murphy wrote, they are pretty good lenses, particularly around f5.6. Have fun with it.
David