Hi all!

I recently started seriously adding to my collection of vinyl lps and found this in a local flea market next door to where I work.  It appears to be autographed by Donna Summer, in a personalized message. The owners of the flea market got it in a big stack of records that they picked up in an estate sale, so I have no knowledge whatsoever as to who "Sandy" may be or when this would have been signed.  It's definitely signed in Sharpie (and not a screen print type thing). I would love to possibly sell  this to someone who is a bigger fan than I am, but I have no idea about the autograph or how to go about getting it authinticated; and I am reluctant to put it up for sale without being more certain.  Any thoughts or ideas?  Thanks in advance!