Hello Fernando,
Sorry to take awhile getting back to this thread. I am extremely computer-challenged when it comes to posting pics. RSword/Rick has helped me in the past, but alas, he has moved away
Jim McDougal has personally held the cutlass in question, which he more positively identified as Brazilian and can attest to the striated lines and exact star markings on these Spanish pieces. I could try and photo them and snail-mail you a copy (if I'm lucky enough to get details out of photos) or a rubbing/tracing. Jim, do you happen to have any pics of espada with these star and line work markings??