From the now expanded Aikido Journal article showing some of the altered photo's; the last comment.
There is yet another alterned version of the photo that is not in my possession. It was published in a book titled “Aikido Shintei,” by Kisshomaru Ueshiba that appeared in the late 80s. In that version, yet a different alteration was published with the “ryu” character of “Daito-ryu” being cut in half, and the characters for “Aikijujutsu” appearing below.
Early 60's to late 80's
That's almost thirty years of tampering, the last long after Ueshiba had passed. Isn't it interesting that along came Stan with his questions and camera and....it all stopped.
What does that say?
I've got a copy of Aikido Shintei at home, I'll have to take a look at it later.