Obviously political figures use alot of autopen machines. Does anyone know for sure if Ronald Reagan actually signed ANY of his fan mail?  I know his mother was big into signing his stuff while he was an actor. What about while he was governor?

I have a photo that along with it has the original letter mailed to Reagan asking for the autograph, the original envelopes, and a thick stationary card with a governor seal saying "With complements of the Governor of California".

Without posting an image of it yet (which by the way, there's no doubt it's real ink and his style signature), is there any chance that he did sign his mail from that time period or any other?