Terisail - Frister and Rossmann is in effect a brand name used by the importers between the two World Wars. The original company was in Berlin but folded at some time about 95 years ago. The modern Frister and Rossmann is just a continuation of the name but not the same company at all. I've always been curious to know who actually made the inter-war F & Rs because they are excellent machines. If the manual shows you how to wind the bobbin, that's good news. If not, let me know.