There has been chatter about a new POI called "mason", and I started doing a little research about the free masons. I found it interesting that the masons used substitution and homophonic grid ciphers to keep their communications secret from open society. I also started researching "mason marks" which I believe the stone masons used to mark their work in some fashion to identify the style or people that did the work. There are countless charts filled with these marks and they seem to look alot like the style of the "1 pentene" mark that Z used several times. May be nothing but also may be worth some more research. Posting a pic that I found as an example of what I’m talking about.