Matt, long after I wrote my suggestions, I began to wince at some of my thinking. Most anyone taking the time and trouble to visit the museum knowing a 52 Topps Mantle will be there already knows of its significance. I didn't realize the display was a Topps promotion, though they were correct in placing a brief accompanying "museum display description". Tastefully done. Looks unforgettable, bro.
As for talking with people, after half an hour you'd be hankerin' to vamoose and just let the display speak for itself.
Regardless, thanks for posting photos. This is sure exciting. --Brian Powell