I came across this video at about 2 in the morning. My days and nights are all messed up since we haven’t been out much lately! I will admit that I find it intriguing but only comprehend about 2/16th in regard to how to use it? A comment below the video reads something to the effect of "the solution set for a 9 x 9 Magick Square is ‘369’, the numbers of which Nicola Tesla believes to be the keys to the Universe!". THIS made me think of Z!! Anyone out there that could apply this somehow to the Z340 to see if it means anything in regard to that cipher? Wish I could but admittedly it’s over my head! (Might want to set playback speed to 1.25+ … this guy does talk a bit slow)

https://www.youtube.com/watch?v=6fedjvyRt5w

Y’all stay safe!
Margie