Bill Murray and a dinosaur appear on wall in Conshohocken

A reader pointed out to us that someone has stenciled the face of Bill Murray and a dinosaur on a stone wall at the bottom of West 4th Avenue in Conshohocken.

No one is sure when they were added to the wall, but we looked on Google Earth and they don’t appear to have been there as of September 2018.

Does anyone know the story?