Ludoal derailleur main image Ludoal Gran Sport derailleur main image Gambato Crane? derailleur main image

I know startlingly little about Ludoal. I believe:

  • It is an Argentine brand.
  • A relevant trademark was registered in 1977 - but it gives us no useful information. 1977 also seems very late for the derailleurs shown here.
  • The derailleurs show some similarities to those of Gambato. But they also show surprising differences.