Hello CCUAL,
I was the third "high" bidder and have had the hope that it was overseen by others!

Agree with David, I think as well that this are talismanic markings on the blade and with you that it maybe has twistcore in the middle. Are you going to restore the handle?
Jose, do you think that it is indeed old like this? My guess would have been 18th century.
Anyway, great catch! I am green with envy!
Regards,
Detlef