Just a little history on this. I bought it in the early 70's..It could very well be a 60's.. Not sure when she signed it. I wonder if maybe some of the lettering may have changed or evolved throwing people off from the normal usual later 70's or 1980 sigs.
I think it looks authentic - the N and the W are a little differnt than one's I have, but the rest of the names look just like what I have - I have a couple of thank you notes for the late 70's on her NWW stationary - secretary tyed the notes, but she usually added a lenghty habdwritten postscript - I also have a couple of handsigned photos she sent, as well as a program she signed to me in person at the Dorothy Chander Pavllion - I say it's the real deal...