Well, they certainly imply it. Here's an example from 1964:
And the magazine goes to quote what someone else said about it being "the message... that Jehovah has for us."
Of course, they made up the bullshit about some brother opening the wrapper on his magazine, but they still did not say directly that it was true, what the brother said.
My point is that this is an important topic in our quest for freedom and helping others, but we cannot even get a grip on what the accurate Watchtower teaching is on this. I mean, it's not in print, but they want you to believe that when Fred Franz died, there was even more "spirit-direction" from heaven. But say that out loud and you will be cut to shreds.