Volunteer painters at the Mt. Airy Arts Garage working on a new mural to be installed at Chelten and Pulaski in Germantown this summer, under the auspices of the Philadelphia Mural Arts Program.  They are painting on silk canvas that will be glued to the wall.  The mural is one of several in Northwest Philly designed by Jon Laidacker, the man photographing the work with his cellphone.  Please have a look at my high resolution photomosaics of those and other Philly murals [here].