Yes, I it says
Würker, sort of hand writing style. I have seen the Würker name on old zigzagger attachments, maybe there's a connection? (I have spend way too much time searching ebay and the web in general
)
Jane Quilter, you reminded me of somting there; digging into the world of sewing machines and related industri we certainly get to know social history; why worker's unions came about, and mandatoy work regulations are important. They are still as improtant as ever. From a world wide point of view, we might not have come that far.
A lot we read on sewing machine history relates to domestic machines; the first swing needle zigzaggers were introduced in the 1920s. I have discovered they had industrial over lockers, sergers, swing needle zigzaggers, embrodery units of various kinds. I suppose our grand parents and great grand parents knew it very well, but we discover it when reading up on the past. I'm all for a wider view of our selves than the current decade, even century :- )