Oswald in the doorway: the blog of the Oswald Innocence Campaign, by Ralph Cinque

Robin Unger put up several examples of newspapers which featured Altgens6 on November 22, but not one of them includes the coding.

http://quaneeri2.blogspot.com.au/2015/05/des-moines-tribune-november-22nd-1963.html

Does this explain why Larry Dunkel used Altgens7 to exemplify the coding? 

I don't know if there are any exceptions, but, it's clear that the coding was not typically used for Altgens6.

But, Backes said that the caption, including the coding, was wired out with the photo; a package deal. So, what happened to it? Did all these newspapers decide to delete the coding? Why would they do that?