I found this jacket in Paris a few years ago, but I’m pretty sure from the lapel style, interior pocket treatment (strip of fabric at pocket mouth extending from front facings) and tailor’s name, that it’s a German jacket from the 1930s or 1940s. I’m also pretty sure it’s been shortened, but when I took apart the bottom seam I couldn’t find evidence of shortening so it’s been done professionally.
In all a very nice orphaned suit jacket that’s easily useable as a sportscoat paired with light coloured trousers that pick up on the shade of the chalk stripe in the jacket.