That appears a very early 1960's signature if genuine - why/how on a 1969 FDC? It appears a little mechanical (could be the paper or scan) but doesn't appear to match known early Autopen styles. Steve Zarelli would be the man to ask.
That's what I was thinking as well.
The seller says he'll pay for the Zarelli opinion if he fails it.
The seller also has several big name NASA sigs for sale at very decent prices which has my eye for now.
All I can add is this link to Toolhaus.org
That speaks volumes
Great input Eric thanks
Large leary eyes now