A Strange Monument

Mercer Cemetery, Wardens Grove F.W.B. Church

Because Halloween is just around the corner, I thought I would post something that has always "spooked" me.  During my childhood years and even today in adulthood, there was always something strange and haunting about a certain monument in the Mercer Cemetery at Warden's Grove F.W.B.  I am sure many of you know the exact monument I am talking about.  Each time I went into the cemetery (and even today), I pass by this strange marker.  On it's base on all four sides, imprinted is a face that is the resemblance of the devil.  I have never understood the meaning of this marker.  It doesn't  bear an inscription.  I don't know how it got to this location in the cemetery or who even placed it there.  It is positioned right next to Albion Guynn's marker, the son of lighthouse keeper Mumford Guynn. The bowl on top has been broken for as long as I can remember.  If anybody can shed some light on this I would be most appreciative.