Michael this is VERY interesting.
Best I can tell the Grandmaster's name translates as Joshua Author. Yehoshua Sofer. It could also be the Name of God Yod He Vau He (YHVH) with the letter Shin in the middle, or Yod He Shin Vau He (YHSVH)which is one of the Names of Jesus.
While I find the concept of Hebrew martial artists fascinating, I wonder if there are any ethnographic references?
Perhaps we could discuss this privately??
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