Lost rare vintage 1970s Spider-Man comic book near Ithaca Commons, Ithaca, NY.

I lost a rare vintage comic book from the 1970s while exploring the Ithaca Commons area last weekend. It features a special edition of 'Spider-Man' that was a gift from my grandfather. The comic book is in good condition, but the cover has some wear and tear typical for its age. I'm hoping someone might have come across it and would be willing to return it to me.